// SPDX-License-Identifier: MIT
// SPDX-FileCopyrightText: 2022 Tamas Hubai

`default_nettype none

module u22_tb ();

integer i;
reg [3:0] func1;
reg [3:0] func2;
wire [1:0] subs = i;
reg [5:0] wiring;
wire a, b;
assign {a, b} = subs;
wire [1:0] dut_out;
wire mux_out1, mux_out2;
wire assert = dut_out == {mux_out1, mux_out2};

wire O = 1'b0;
wire I = 1'b1;

u22 dut (
    .in(wiring),
    .out(dut_out)
);

mux2 mux_i1 (
    .in(func1),
    .sel(subs),
    .out(mux_out1)
);

mux2 mux_i2 (
    .in(func2),
    .sel(subs),
    .out(mux_out2)
);

initial begin
    for (i=0; i<4; i=i+1) begin
        #I func1 = {O, O, O, O}; func2 = {O, O, O, O}; wiring = {O, O, O, O, O, O}; #I $display(assert);
        #I func1 = {O, O, O, O}; func2 = {O, O, O, I}; wiring = {a, b, a, I, I, O}; #I $display(assert);
        #I func1 = {O, O, O, O}; func2 = {O, O, I, O}; wiring = {b, O, a, a, O, O}; #I $display(assert);
        #I func1 = {O, O, O, O}; func2 = {O, O, I, I}; wiring = {b, O, O, O, O, O}; #I $display(assert);
        #I func1 = {O, O, O, O}; func2 = {O, I, O, O}; wiring = {a, O, b, b, O, O}; #I $display(assert);
        #I func1 = {O, O, O, O}; func2 = {O, I, O, I}; wiring = {a, O, O, O, O, O}; #I $display(assert);
        #I func1 = {O, O, O, O}; func2 = {O, I, I, O}; wiring = {b, O, O, O, a, O}; #I $display(assert);
        #I func1 = {O, O, O, O}; func2 = {O, I, I, I}; wiring = {b, O, a, O, O, a}; #I $display(assert);
        #I func1 = {O, O, O, O}; func2 = {I, O, O, O}; wiring = {I, b, a, a, O, O}; #I $display(assert);
        #I func1 = {O, O, O, O}; func2 = {I, O, O, I}; wiring = {I, b, O, O, a, O}; #I $display(assert);
        #I func1 = {O, O, O, O}; func2 = {I, O, I, O}; wiring = {I, a, O, O, O, O}; #I $display(assert);
        #I func1 = {O, O, O, O}; func2 = {I, O, I, I}; wiring = {I, b, a, a, b, O}; #I $display(assert);
        #I func1 = {O, O, O, O}; func2 = {I, I, O, O}; wiring = {I, b, O, O, O, O}; #I $display(assert);
        #I func1 = {O, O, O, O}; func2 = {I, I, O, I}; wiring = {I, a, b, b, a, O}; #I $display(assert);
        #I func1 = {O, O, O, O}; func2 = {I, I, I, O}; wiring = {I, b, I, O, a, I}; #I $display(assert);
        #I func1 = {O, O, O, O}; func2 = {I, I, I, I}; wiring = {I, O, O, O, O, O}; #I $display(assert);
        #I func1 = {O, O, O, I}; func2 = {O, O, O, O}; wiring = {a, b, b, O, a, O}; #I $display(assert);
        #I func1 = {O, O, O, I}; func2 = {O, O, O, I}; wiring = {O, b, b, a, a, O}; #I $display(assert);
        #I func1 = {O, O, O, I}; func2 = {O, O, I, O}; wiring = {b, a, a, O, a, O}; #I $display(assert);
        #I func1 = {O, O, O, I}; func2 = {O, O, I, I}; wiring = {b, a, a, O, O, O}; #I $display(assert);
        #I func1 = {O, O, O, I}; func2 = {O, I, O, O}; wiring = {a, b, b, O, b, O}; #I $display(assert);
        #I func1 = {O, O, O, I}; func2 = {O, I, O, I}; wiring = {a, b, b, O, O, O}; #I $display(assert);
        #I func1 = {O, O, O, I}; func2 = {O, I, I, O}; wiring = {b, a, O, O, O, a}; #I $display(assert);
        #I func1 = {O, O, O, I}; func2 = {O, I, I, I}; wiring = {b, a, I, a, I, I}; #I $display(assert);
        #I func1 = {O, O, O, I}; func2 = {I, O, O, O}; wiring = {b, a, a, O, I, O}; #I $display(assert);
        #I func1 = {O, O, O, I}; func2 = {I, O, O, I}; wiring = {b, O, O, a, I, O}; #I $display(assert);
        #I func1 = {O, O, O, I}; func2 = {I, O, I, O}; wiring = {I, I, a, I, O, b}; #I $display(assert);
        #I func1 = {O, O, O, I}; func2 = {I, O, I, I}; wiring = {b, I, b, a, a, I}; #I $display(assert);
        #I func1 = {O, O, O, I}; func2 = {I, I, O, O}; wiring = {I, I, b, I, O, a}; #I $display(assert);
        #I func1 = {O, O, O, I}; func2 = {I, I, O, I}; wiring = {a, I, a, b, b, I}; #I $display(assert);
        #I func1 = {O, O, O, I}; func2 = {I, I, I, O}; wiring = {b, a, I, a, O, I}; #I $display(assert);
        #I func1 = {O, O, O, I}; func2 = {I, I, I, I}; wiring = {b, a, I, a, a, I}; #I $display(assert);
        #I func1 = {O, O, I, O}; func2 = {O, O, O, O}; wiring = {a, b, O, b, a, O}; #I $display(assert);
        #I func1 = {O, O, I, O}; func2 = {O, O, O, I}; wiring = {a, a, O, b, O, O}; #I $display(assert);
        #I func1 = {O, O, I, O}; func2 = {O, O, I, O}; wiring = {a, b, I, I, O, O}; #I $display(assert);
        #I func1 = {O, O, I, O}; func2 = {O, O, I, I}; wiring = {a, I, b, I, I, O}; #I $display(assert);
        #I func1 = {O, O, I, O}; func2 = {O, I, O, O}; wiring = {O, O, O, b, a, O}; #I $display(assert);
        #I func1 = {O, O, I, O}; func2 = {O, I, O, I}; wiring = {a, b, O, b, O, O}; #I $display(assert);
        #I func1 = {O, O, I, O}; func2 = {O, I, I, O}; wiring = {a, b, O, O, O, O}; #I $display(assert);
        #I func1 = {O, O, I, O}; func2 = {O, I, I, I}; wiring = {a, b, O, O, b, O}; #I $display(assert);
        #I func1 = {O, O, I, O}; func2 = {I, O, O, O}; wiring = {b, I, O, a, a, I}; #I $display(assert);
        #I func1 = {O, O, I, O}; func2 = {I, O, O, I}; wiring = {O, O, b, a, I, O}; #I $display(assert);
        #I func1 = {O, O, I, O}; func2 = {I, O, I, O}; wiring = {O, b, O, a, I, O}; #I $display(assert);
        #I func1 = {O, O, I, O}; func2 = {I, O, I, I}; wiring = {I, a, O, b, O, O}; #I $display(assert);
        #I func1 = {O, O, I, O}; func2 = {I, I, O, O}; wiring = {a, b, I, O, a, I}; #I $display(assert);
        #I func1 = {O, O, I, O}; func2 = {I, I, O, I}; wiring = {a, b, I, O, O, I}; #I $display(assert);
        #I func1 = {O, O, I, O}; func2 = {I, I, I, O}; wiring = {I, a, b, a, O, O}; #I $display(assert);
        #I func1 = {O, O, I, O}; func2 = {I, I, I, I}; wiring = {I, a, b, a, b, O}; #I $display(assert);
        #I func1 = {O, O, I, I}; func2 = {O, O, O, O}; wiring = {O, O, O, b, O, O}; #I $display(assert);
        #I func1 = {O, O, I, I}; func2 = {O, O, O, I}; wiring = {O, a, a, b, O, O}; #I $display(assert);
        #I func1 = {O, O, I, I}; func2 = {O, O, I, O}; wiring = {b, I, I, O, a, O}; #I $display(assert);
        #I func1 = {O, O, I, I}; func2 = {O, O, I, I}; wiring = {O, b, O, O, O, O}; #I $display(assert);
        #I func1 = {O, O, I, I}; func2 = {O, I, O, O}; wiring = {O, a, O, b, O, a}; #I $display(assert);
        #I func1 = {O, O, I, I}; func2 = {O, I, O, I}; wiring = {a, O, O, b, O, O}; #I $display(assert);
        #I func1 = {O, O, I, I}; func2 = {O, I, I, O}; wiring = {I, a, b, O, I, O}; #I $display(assert);
        #I func1 = {O, O, I, I}; func2 = {O, I, I, I}; wiring = {a, O, b, O, O, O}; #I $display(assert);
        #I func1 = {O, O, I, I}; func2 = {I, O, O, O}; wiring = {O, b, I, O, a, I}; #I $display(assert);
        #I func1 = {O, O, I, I}; func2 = {I, O, O, I}; wiring = {a, O, b, O, I, O}; #I $display(assert);
        #I func1 = {O, O, I, I}; func2 = {I, O, I, O}; wiring = {I, b, b, O, a, O}; #I $display(assert);
        #I func1 = {O, O, I, I}; func2 = {I, O, I, I}; wiring = {I, a, b, O, O, O}; #I $display(assert);
        #I func1 = {O, O, I, I}; func2 = {I, I, O, O}; wiring = {O, O, b, O, I, O}; #I $display(assert);
        #I func1 = {O, O, I, I}; func2 = {I, I, O, I}; wiring = {b, I, O, O, a, I}; #I $display(assert);
        #I func1 = {O, O, I, I}; func2 = {I, I, I, O}; wiring = {I, a, b, O, a, O}; #I $display(assert);
        #I func1 = {O, O, I, I}; func2 = {I, I, I, I}; wiring = {I, O, b, O, O, O}; #I $display(assert);
        #I func1 = {O, I, O, O}; func2 = {O, O, O, O}; wiring = {b, a, O, a, b, O}; #I $display(assert);
        #I func1 = {O, I, O, O}; func2 = {O, O, O, I}; wiring = {b, b, O, a, O, O}; #I $display(assert);
        #I func1 = {O, I, O, O}; func2 = {O, O, I, O}; wiring = {O, O, O, a, b, O}; #I $display(assert);
        #I func1 = {O, I, O, O}; func2 = {O, O, I, I}; wiring = {b, a, O, a, O, O}; #I $display(assert);
        #I func1 = {O, I, O, O}; func2 = {O, I, O, O}; wiring = {b, a, I, I, O, O}; #I $display(assert);
        #I func1 = {O, I, O, O}; func2 = {O, I, O, I}; wiring = {b, I, a, I, I, O}; #I $display(assert);
        #I func1 = {O, I, O, O}; func2 = {O, I, I, O}; wiring = {b, a, O, O, O, O}; #I $display(assert);
        #I func1 = {O, I, O, O}; func2 = {O, I, I, I}; wiring = {b, a, O, O, a, O}; #I $display(assert);
        #I func1 = {O, I, O, O}; func2 = {I, O, O, O}; wiring = {a, I, O, b, b, I}; #I $display(assert);
        #I func1 = {O, I, O, O}; func2 = {I, O, O, I}; wiring = {O, O, a, b, I, O}; #I $display(assert);
        #I func1 = {O, I, O, O}; func2 = {I, O, I, O}; wiring = {b, a, I, O, a, I}; #I $display(assert);
        #I func1 = {O, I, O, O}; func2 = {I, O, I, I}; wiring = {b, a, I, O, O, I}; #I $display(assert);
        #I func1 = {O, I, O, O}; func2 = {I, I, O, O}; wiring = {O, a, O, b, I, O}; #I $display(assert);
        #I func1 = {O, I, O, O}; func2 = {I, I, O, I}; wiring = {I, b, O, a, O, O}; #I $display(assert);
        #I func1 = {O, I, O, O}; func2 = {I, I, I, O}; wiring = {I, b, a, b, O, O}; #I $display(assert);
        #I func1 = {O, I, O, O}; func2 = {I, I, I, I}; wiring = {I, b, a, b, a, O}; #I $display(assert);
        #I func1 = {O, I, O, I}; func2 = {O, O, O, O}; wiring = {O, O, O, a, O, O}; #I $display(assert);
        #I func1 = {O, I, O, I}; func2 = {O, O, O, I}; wiring = {O, b, b, a, O, O}; #I $display(assert);
        #I func1 = {O, I, O, I}; func2 = {O, O, I, O}; wiring = {b, O, a, a, O, a}; #I $display(assert);
        #I func1 = {O, I, O, I}; func2 = {O, O, I, I}; wiring = {b, O, O, a, O, O}; #I $display(assert);
        #I func1 = {O, I, O, I}; func2 = {O, I, O, O}; wiring = {a, I, I, O, b, O}; #I $display(assert);
        #I func1 = {O, I, O, I}; func2 = {O, I, O, I}; wiring = {O, a, O, O, O, O}; #I $display(assert);
        #I func1 = {O, I, O, I}; func2 = {O, I, I, O}; wiring = {I, b, a, O, I, O}; #I $display(assert);
        #I func1 = {O, I, O, I}; func2 = {O, I, I, I}; wiring = {b, O, a, O, O, O}; #I $display(assert);
        #I func1 = {O, I, O, I}; func2 = {I, O, O, O}; wiring = {O, a, I, O, b, I}; #I $display(assert);
        #I func1 = {O, I, O, I}; func2 = {I, O, O, I}; wiring = {b, O, a, O, I, O}; #I $display(assert);
        #I func1 = {O, I, O, I}; func2 = {I, O, I, O}; wiring = {O, O, a, O, I, O}; #I $display(assert);
        #I func1 = {O, I, O, I}; func2 = {I, O, I, I}; wiring = {I, b, I, a, a, I}; #I $display(assert);
        #I func1 = {O, I, O, I}; func2 = {I, I, O, O}; wiring = {I, b, a, O, a, O}; #I $display(assert);
        #I func1 = {O, I, O, I}; func2 = {I, I, O, I}; wiring = {I, b, a, O, O, O}; #I $display(assert);
        #I func1 = {O, I, O, I}; func2 = {I, I, I, O}; wiring = {I, b, a, O, b, O}; #I $display(assert);
        #I func1 = {O, I, O, I}; func2 = {I, I, I, I}; wiring = {I, O, a, O, O, O}; #I $display(assert);
        #I func1 = {O, I, I, O}; func2 = {O, O, O, O}; wiring = {b, I, I, O, I, a}; #I $display(assert);
        #I func1 = {O, I, I, O}; func2 = {O, O, O, I}; wiring = {O, O, a, b, a, O}; #I $display(assert);
        #I func1 = {O, I, I, O}; func2 = {O, O, I, O}; wiring = {O, O, b, a, O, O}; #I $display(assert);
        #I func1 = {O, I, I, O}; func2 = {O, O, I, I}; wiring = {a, I, I, b, I, O}; #I $display(assert);
        #I func1 = {O, I, I, O}; func2 = {O, I, O, O}; wiring = {O, O, a, b, O, O}; #I $display(assert);
        #I func1 = {O, I, I, O}; func2 = {O, I, O, I}; wiring = {b, I, I, a, I, O}; #I $display(assert);
        #I func1 = {O, I, I, O}; func2 = {O, I, I, O}; wiring = {O, b, a, O, O, O}; #I $display(assert);
        #I func1 = {O, I, I, O}; func2 = {O, I, I, I}; wiring = {a, b, O, a, O, O}; #I $display(assert);
        #I func1 = {O, I, I, O}; func2 = {I, O, O, O}; wiring = {b, I, a, O, a, I}; #I $display(assert);
        #I func1 = {O, I, I, O}; func2 = {I, O, O, I}; wiring = {b, I, a, O, O, I}; #I $display(assert);
        #I func1 = {O, I, I, O}; func2 = {I, O, I, O}; wiring = {O, b, a, O, I, O}; #I $display(assert);
        #I func1 = {O, I, I, O}; func2 = {I, O, I, I}; wiring = {I, a, a, b, a, O}; #I $display(assert);
        #I func1 = {O, I, I, O}; func2 = {I, I, O, O}; wiring = {O, a, b, O, I, O}; #I $display(assert);
        #I func1 = {O, I, I, O}; func2 = {I, I, O, I}; wiring = {I, b, b, a, b, O}; #I $display(assert);
        #I func1 = {O, I, I, O}; func2 = {I, I, I, O}; wiring = {I, O, b, a, O, O}; #I $display(assert);
        #I func1 = {O, I, I, O}; func2 = {I, I, I, I}; wiring = {I, b, b, a, a, O}; #I $display(assert);
        #I func1 = {O, I, I, I}; func2 = {O, O, O, O}; wiring = {O, O, O, b, O, a}; #I $display(assert);
        #I func1 = {O, I, I, I}; func2 = {O, O, O, I}; wiring = {O, b, a, b, a, O}; #I $display(assert);
        #I func1 = {O, I, I, I}; func2 = {O, O, I, O}; wiring = {O, b, O, a, O, O}; #I $display(assert);
        #I func1 = {O, I, I, I}; func2 = {O, O, I, I}; wiring = {O, a, b, a, O, O}; #I $display(assert);
        #I func1 = {O, I, I, I}; func2 = {O, I, O, O}; wiring = {O, a, O, b, O, O}; #I $display(assert);
        #I func1 = {O, I, I, I}; func2 = {O, I, O, I}; wiring = {O, b, a, b, O, O}; #I $display(assert);
        #I func1 = {O, I, I, I}; func2 = {O, I, I, O}; wiring = {a, b, a, O, a, O}; #I $display(assert);
        #I func1 = {O, I, I, I}; func2 = {O, I, I, I}; wiring = {a, b, a, O, O, O}; #I $display(assert);
        #I func1 = {O, I, I, I}; func2 = {I, O, O, O}; wiring = {a, b, I, a, O, I}; #I $display(assert);
        #I func1 = {O, I, I, I}; func2 = {I, O, O, I}; wiring = {a, b, I, a, a, I}; #I $display(assert);
        #I func1 = {O, I, I, I}; func2 = {I, O, I, O}; wiring = {b, O, a, b, I, b}; #I $display(assert);
        #I func1 = {O, I, I, I}; func2 = {I, O, I, I}; wiring = {a, b, O, O, I, a}; #I $display(assert);
        #I func1 = {O, I, I, I}; func2 = {I, I, O, O}; wiring = {a, O, b, a, I, a}; #I $display(assert);
        #I func1 = {O, I, I, I}; func2 = {I, I, O, I}; wiring = {I, b, b, a, b, a}; #I $display(assert);
        #I func1 = {O, I, I, I}; func2 = {I, I, I, O}; wiring = {a, b, a, O, I, O}; #I $display(assert);
        #I func1 = {O, I, I, I}; func2 = {I, I, I, I}; wiring = {I, O, O, b, O, a}; #I $display(assert);
        #I func1 = {I, O, O, O}; func2 = {O, O, O, O}; wiring = {b, O, b, I, a, O}; #I $display(assert);
        #I func1 = {I, O, O, O}; func2 = {O, O, O, I}; wiring = {a, b, I, a, I, O}; #I $display(assert);
        #I func1 = {I, O, O, O}; func2 = {O, O, I, O}; wiring = {b, b, a, I, O, O}; #I $display(assert);
        #I func1 = {I, O, O, O}; func2 = {O, O, I, I}; wiring = {O, I, b, I, a, I}; #I $display(assert);
        #I func1 = {I, O, O, O}; func2 = {O, I, O, O}; wiring = {a, a, b, I, O, O}; #I $display(assert);
        #I func1 = {I, O, O, O}; func2 = {O, I, O, I}; wiring = {O, I, a, I, b, I}; #I $display(assert);
        #I func1 = {I, O, O, O}; func2 = {O, I, I, O}; wiring = {a, b, a, O, a, I}; #I $display(assert);
        #I func1 = {I, O, O, O}; func2 = {O, I, I, I}; wiring = {b, b, a, I, a, O}; #I $display(assert);
        #I func1 = {I, O, O, O}; func2 = {I, O, O, O}; wiring = {a, b, I, a, O, O}; #I $display(assert);
        #I func1 = {I, O, O, O}; func2 = {I, O, O, I}; wiring = {I, b, a, I, I, O}; #I $display(assert);
        #I func1 = {I, O, O, O}; func2 = {I, O, I, O}; wiring = {I, b, a, I, O, O}; #I $display(assert);
        #I func1 = {I, O, O, O}; func2 = {I, O, I, I}; wiring = {I, b, a, I, a, O}; #I $display(assert);
        #I func1 = {I, O, O, O}; func2 = {I, I, O, O}; wiring = {I, a, b, I, O, O}; #I $display(assert);
        #I func1 = {I, O, O, O}; func2 = {I, I, O, I}; wiring = {I, a, b, I, b, O}; #I $display(assert);
        #I func1 = {I, O, O, O}; func2 = {I, I, I, O}; wiring = {a, b, a, O, I, I}; #I $display(assert);
        #I func1 = {I, O, O, O}; func2 = {I, I, I, I}; wiring = {b, I, O, b, O, a}; #I $display(assert);
        #I func1 = {I, O, O, I}; func2 = {O, O, O, O}; wiring = {O, b, I, O, I, a}; #I $display(assert);
        #I func1 = {I, O, O, I}; func2 = {O, O, O, I}; wiring = {O, a, b, I, a, O}; #I $display(assert);
        #I func1 = {I, O, O, I}; func2 = {O, O, I, O}; wiring = {O, b, a, O, a, I}; #I $display(assert);
        #I func1 = {I, O, O, I}; func2 = {O, O, I, I}; wiring = {O, a, I, b, I, O}; #I $display(assert);
        #I func1 = {I, O, O, I}; func2 = {O, I, O, O}; wiring = {O, a, b, O, b, I}; #I $display(assert);
        #I func1 = {I, O, O, I}; func2 = {O, I, O, I}; wiring = {O, b, I, a, I, O}; #I $display(assert);
        #I func1 = {I, O, O, I}; func2 = {O, I, I, O}; wiring = {O, b, a, O, O, I}; #I $display(assert);
        #I func1 = {I, O, O, I}; func2 = {O, I, I, I}; wiring = {b, I, a, I, a, I}; #I $display(assert);
        #I func1 = {I, O, O, I}; func2 = {I, O, O, O}; wiring = {b, I, a, O, a, O}; #I $display(assert);
        #I func1 = {I, O, O, I}; func2 = {I, O, O, I}; wiring = {b, I, a, O, O, O}; #I $display(assert);
        #I func1 = {I, O, O, I}; func2 = {I, O, I, O}; wiring = {b, I, a, O, I, O}; #I $display(assert);
        #I func1 = {I, O, O, I}; func2 = {I, O, I, I}; wiring = {O, a, I, b, b, O}; #I $display(assert);
        #I func1 = {I, O, O, I}; func2 = {I, I, O, O}; wiring = {a, I, b, O, I, O}; #I $display(assert);
        #I func1 = {I, O, O, I}; func2 = {I, I, O, I}; wiring = {O, b, I, a, a, O}; #I $display(assert);
        #I func1 = {I, O, O, I}; func2 = {I, I, I, O}; wiring = {I, a, b, a, O, I}; #I $display(assert);
        #I func1 = {I, O, O, I}; func2 = {I, I, I, I}; wiring = {I, b, a, b, a, I}; #I $display(assert);
        #I func1 = {I, O, I, O}; func2 = {O, O, O, O}; wiring = {O, O, a, I, O, O}; #I $display(assert);
        #I func1 = {I, O, I, O}; func2 = {O, O, O, I}; wiring = {a, b, a, I, a, O}; #I $display(assert);
        #I func1 = {I, O, I, O}; func2 = {O, O, I, O}; wiring = {b, O, a, I, O, O}; #I $display(assert);
        #I func1 = {I, O, I, O}; func2 = {O, O, I, I}; wiring = {a, I, b, I, a, O}; #I $display(assert);
        #I func1 = {I, O, I, O}; func2 = {O, I, O, O}; wiring = {O, a, O, b, a, I}; #I $display(assert);
        #I func1 = {I, O, I, O}; func2 = {O, I, O, I}; wiring = {a, I, O, I, O, O}; #I $display(assert);
        #I func1 = {I, O, I, O}; func2 = {O, I, I, O}; wiring = {a, I, b, I, O, O}; #I $display(assert);
        #I func1 = {I, O, I, O}; func2 = {O, I, I, I}; wiring = {a, I, b, I, b, O}; #I $display(assert);
        #I func1 = {I, O, I, O}; func2 = {I, O, O, O}; wiring = {O, a, I, O, b, O}; #I $display(assert);
        #I func1 = {I, O, I, O}; func2 = {I, O, O, I}; wiring = {a, I, O, b, O, O}; #I $display(assert);
        #I func1 = {I, O, I, O}; func2 = {I, O, I, O}; wiring = {a, I, O, O, O, O}; #I $display(assert);
        #I func1 = {I, O, I, O}; func2 = {I, O, I, I}; wiring = {I, b, I, a, a, O}; #I $display(assert);
        #I func1 = {I, O, I, O}; func2 = {I, I, O, O}; wiring = {a, I, O, b, a, O}; #I $display(assert);
        #I func1 = {I, O, I, O}; func2 = {I, I, O, I}; wiring = {I, b, a, O, O, I}; #I $display(assert);
        #I func1 = {I, O, I, O}; func2 = {I, I, I, O}; wiring = {b, O, I, a, a, O}; #I $display(assert);
        #I func1 = {I, O, I, O}; func2 = {I, I, I, I}; wiring = {I, a, O, I, O, O}; #I $display(assert);
        #I func1 = {I, O, I, I}; func2 = {O, O, O, O}; wiring = {b, O, b, I, a, I}; #I $display(assert);
        #I func1 = {I, O, I, I}; func2 = {O, O, O, I}; wiring = {O, b, a, I, O, O}; #I $display(assert);
        #I func1 = {I, O, I, I}; func2 = {O, O, I, O}; wiring = {b, a, I, O, I, O}; #I $display(assert);
        #I func1 = {I, O, I, I}; func2 = {O, O, I, I}; wiring = {b, O, O, I, a, O}; #I $display(assert);
        #I func1 = {I, O, I, I}; func2 = {O, I, O, O}; wiring = {b, a, I, I, O, I}; #I $display(assert);
        #I func1 = {I, O, I, I}; func2 = {O, I, O, I}; wiring = {O, b, a, I, a, O}; #I $display(assert);
        #I func1 = {I, O, I, I}; func2 = {O, I, I, O}; wiring = {b, a, O, O, O, I}; #I $display(assert);
        #I func1 = {I, O, I, I}; func2 = {O, I, I, I}; wiring = {b, a, O, O, a, I}; #I $display(assert);
        #I func1 = {I, O, I, I}; func2 = {I, O, O, O}; wiring = {a, b, I, a, O, b}; #I $display(assert);
        #I func1 = {I, O, I, I}; func2 = {I, O, O, I}; wiring = {O, I, a, b, O, O}; #I $display(assert);
        #I func1 = {I, O, I, I}; func2 = {I, O, I, O}; wiring = {b, a, I, O, a, O}; #I $display(assert);
        #I func1 = {I, O, I, I}; func2 = {I, O, I, I}; wiring = {b, a, I, O, O, O}; #I $display(assert);
        #I func1 = {I, O, I, I}; func2 = {I, I, O, O}; wiring = {I, a, b, I, O, I}; #I $display(assert);
        #I func1 = {I, O, I, I}; func2 = {I, I, O, I}; wiring = {b, a, O, O, I, I}; #I $display(assert);
        #I func1 = {I, O, I, I}; func2 = {I, I, I, O}; wiring = {I, O, a, b, O, I}; #I $display(assert);
        #I func1 = {I, O, I, I}; func2 = {I, I, I, I}; wiring = {I, a, a, b, b, I}; #I $display(assert);
        #I func1 = {I, I, O, O}; func2 = {O, O, O, O}; wiring = {O, O, b, I, O, O}; #I $display(assert);
        #I func1 = {I, I, O, O}; func2 = {O, O, O, I}; wiring = {b, a, b, I, b, O}; #I $display(assert);
        #I func1 = {I, I, O, O}; func2 = {O, O, I, O}; wiring = {b, I, I, O, a, I}; #I $display(assert);
        #I func1 = {I, I, O, O}; func2 = {O, O, I, I}; wiring = {b, I, O, I, O, O}; #I $display(assert);
        #I func1 = {I, I, O, O}; func2 = {O, I, O, O}; wiring = {a, O, b, I, O, O}; #I $display(assert);
        #I func1 = {I, I, O, O}; func2 = {O, I, O, I}; wiring = {b, I, a, I, b, O}; #I $display(assert);
        #I func1 = {I, I, O, O}; func2 = {O, I, I, O}; wiring = {b, I, a, I, O, O}; #I $display(assert);
        #I func1 = {I, I, O, O}; func2 = {O, I, I, I}; wiring = {b, I, a, I, a, O}; #I $display(assert);
        #I func1 = {I, I, O, O}; func2 = {I, O, O, O}; wiring = {O, b, I, O, a, O}; #I $display(assert);
        #I func1 = {I, I, O, O}; func2 = {I, O, O, I}; wiring = {b, I, O, a, O, O}; #I $display(assert);
        #I func1 = {I, I, O, O}; func2 = {I, O, I, O}; wiring = {b, I, O, a, b, O}; #I $display(assert);
        #I func1 = {I, I, O, O}; func2 = {I, O, I, I}; wiring = {I, a, b, O, O, I}; #I $display(assert);
        #I func1 = {I, I, O, O}; func2 = {I, I, O, O}; wiring = {b, I, O, O, O, O}; #I $display(assert);
        #I func1 = {I, I, O, O}; func2 = {I, I, O, I}; wiring = {b, I, O, O, a, O}; #I $display(assert);
        #I func1 = {I, I, O, O}; func2 = {I, I, I, O}; wiring = {I, b, O, I, a, O}; #I $display(assert);
        #I func1 = {I, I, O, O}; func2 = {I, I, I, I}; wiring = {I, b, O, I, O, O}; #I $display(assert);
        #I func1 = {I, I, O, I}; func2 = {O, O, O, O}; wiring = {a, O, a, I, b, I}; #I $display(assert);
        #I func1 = {I, I, O, I}; func2 = {O, O, O, I}; wiring = {O, a, b, I, O, O}; #I $display(assert);
        #I func1 = {I, I, O, I}; func2 = {O, O, I, O}; wiring = {a, b, I, I, O, I}; #I $display(assert);
        #I func1 = {I, I, O, I}; func2 = {O, O, I, I}; wiring = {O, a, b, I, b, O}; #I $display(assert);
        #I func1 = {I, I, O, I}; func2 = {O, I, O, O}; wiring = {a, b, I, O, I, O}; #I $display(assert);
        #I func1 = {I, I, O, I}; func2 = {O, I, O, I}; wiring = {a, O, O, I, b, O}; #I $display(assert);
        #I func1 = {I, I, O, I}; func2 = {O, I, I, O}; wiring = {a, b, O, O, O, I}; #I $display(assert);
        #I func1 = {I, I, O, I}; func2 = {O, I, I, I}; wiring = {b, b, a, I, a, I}; #I $display(assert);
        #I func1 = {I, I, O, I}; func2 = {I, O, O, O}; wiring = {a, b, I, a, O, a}; #I $display(assert);
        #I func1 = {I, I, O, I}; func2 = {I, O, O, I}; wiring = {O, I, b, a, O, O}; #I $display(assert);
        #I func1 = {I, I, O, I}; func2 = {I, O, I, O}; wiring = {I, b, a, I, O, I}; #I $display(assert);
        #I func1 = {I, I, O, I}; func2 = {I, O, I, I}; wiring = {a, b, O, O, I, I}; #I $display(assert);
        #I func1 = {I, I, O, I}; func2 = {I, I, O, O}; wiring = {a, b, I, O, a, O}; #I $display(assert);
        #I func1 = {I, I, O, I}; func2 = {I, I, O, I}; wiring = {a, b, I, O, O, O}; #I $display(assert);
        #I func1 = {I, I, O, I}; func2 = {I, I, I, O}; wiring = {I, O, b, a, O, I}; #I $display(assert);
        #I func1 = {I, I, O, I}; func2 = {I, I, I, I}; wiring = {I, b, b, a, a, I}; #I $display(assert);
        #I func1 = {I, I, I, O}; func2 = {O, O, O, O}; wiring = {a, b, b, O, a, I}; #I $display(assert);
        #I func1 = {I, I, I, O}; func2 = {O, O, O, I}; wiring = {O, b, a, I, O, I}; #I $display(assert);
        #I func1 = {I, I, I, O}; func2 = {O, O, I, O}; wiring = {b, a, O, I, b, O}; #I $display(assert);
        #I func1 = {I, I, I, O}; func2 = {O, O, I, I}; wiring = {b, a, O, I, O, O}; #I $display(assert);
        #I func1 = {I, I, I, O}; func2 = {O, I, O, O}; wiring = {a, b, O, I, a, O}; #I $display(assert);
        #I func1 = {I, I, I, O}; func2 = {O, I, O, I}; wiring = {a, b, O, I, O, O}; #I $display(assert);
        #I func1 = {I, I, I, O}; func2 = {O, I, I, O}; wiring = {b, a, a, I, O, O}; #I $display(assert);
        #I func1 = {I, I, I, O}; func2 = {O, I, I, I}; wiring = {b, a, I, a, I, O}; #I $display(assert);
        #I func1 = {I, I, I, O}; func2 = {I, O, O, O}; wiring = {b, a, a, O, I, I}; #I $display(assert);
        #I func1 = {I, I, I, O}; func2 = {I, O, O, I}; wiring = {a, I, a, b, a, O}; #I $display(assert);
        #I func1 = {I, I, I, O}; func2 = {I, O, I, O}; wiring = {b, I, b, a, O, O}; #I $display(assert);
        #I func1 = {I, I, I, O}; func2 = {I, O, I, I}; wiring = {I, a, O, b, O, I}; #I $display(assert);
        #I func1 = {I, I, I, O}; func2 = {I, I, O, O}; wiring = {a, I, a, b, O, O}; #I $display(assert);
        #I func1 = {I, I, I, O}; func2 = {I, I, O, I}; wiring = {I, b, O, a, O, I}; #I $display(assert);
        #I func1 = {I, I, I, O}; func2 = {I, I, I, O}; wiring = {b, a, I, a, O, O}; #I $display(assert);
        #I func1 = {I, I, I, O}; func2 = {I, I, I, I}; wiring = {b, a, I, a, a, O}; #I $display(assert);
        #I func1 = {I, I, I, I}; func2 = {O, O, O, O}; wiring = {O, O, O, I, O, O}; #I $display(assert);
        #I func1 = {I, I, I, I}; func2 = {O, O, O, I}; wiring = {I, b, I, I, a, I}; #I $display(assert);
        #I func1 = {I, I, I, I}; func2 = {O, O, I, O}; wiring = {b, O, a, I, O, I}; #I $display(assert);
        #I func1 = {I, I, I, I}; func2 = {O, O, I, I}; wiring = {b, O, O, I, O, O}; #I $display(assert);
        #I func1 = {I, I, I, I}; func2 = {O, I, O, O}; wiring = {a, O, b, I, O, I}; #I $display(assert);
        #I func1 = {I, I, I, I}; func2 = {O, I, O, I}; wiring = {a, O, O, I, O, O}; #I $display(assert);
        #I func1 = {I, I, I, I}; func2 = {O, I, I, O}; wiring = {b, O, O, O, a, I}; #I $display(assert);
        #I func1 = {I, I, I, I}; func2 = {O, I, I, I}; wiring = {b, O, O, b, a, I}; #I $display(assert);
        #I func1 = {I, I, I, I}; func2 = {I, O, O, O}; wiring = {I, b, a, a, O, I}; #I $display(assert);
        #I func1 = {I, I, I, I}; func2 = {I, O, O, I}; wiring = {I, b, O, O, a, I}; #I $display(assert);
        #I func1 = {I, I, I, I}; func2 = {I, O, I, O}; wiring = {O, I, O, a, O, O}; #I $display(assert);
        #I func1 = {I, I, I, I}; func2 = {I, O, I, I}; wiring = {b, O, I, O, a, O}; #I $display(assert);
        #I func1 = {I, I, I, I}; func2 = {I, I, O, O}; wiring = {O, I, O, b, O, O}; #I $display(assert);
        #I func1 = {I, I, I, I}; func2 = {I, I, O, I}; wiring = {a, O, I, O, b, O}; #I $display(assert);
        #I func1 = {I, I, I, I}; func2 = {I, I, I, O}; wiring = {I, b, I, O, a, O}; #I $display(assert);
        #I func1 = {I, I, I, I}; func2 = {I, I, I, I}; wiring = {O, I, O, O, O, O}; #I $display(assert);
    end
end

endmodule