\lstset{basicstyle={\footnotesize\ttfamily}}

\usetheme[height=8mm]{Rochester}
\setbeamersize{text margin left=3mm} 
\setbeamersize{text margin right=3mm} 
\setbeamertemplate{navigation symbols}{}

\definecolor{Cobalt}{rgb}{0.25,0.125,0.70}
\definecolor{RedOrange}{rgb}{0.8,0.25,0.0}
% \definecolor{RedOrange}{rgb}{0.8,0.775,0.25}
\def\frametitledefaultcolor{Cobalt}
\def\frametitleproblemcolor{RedOrange}

\lstset{basicstyle={\footnotesize\ttfamily}}

\setbeamertemplate{frametitle}
{
\vskip-7mm
\textbf{\insertframetitle}\hfill\insertframenumber
}
\setbeamercolor{frametitle}{bg=\frametitledefaultcolor}

\newenvironment{sample}{\VerbatimEnvironment\begin{footnotesize}\begin{semiverbatim}}{\end{semiverbatim}\end{footnotesize}}

\newenvironment{FramedSemiVerb}%
{\begin{Sbox}\begin{minipage}{.94\textwidth}\begin{semiverbatim}}%
{\end{semiverbatim}\end{minipage}\end{Sbox}
\setlength{\fboxsep}{8pt}\fbox{\TheSbox}}

\newenvironment{FramedVerb}%
{\VerbatimEnvironment
\begin{Sbox}\begin{minipage}{.94\textwidth}\begin{Verbatim}}%
{\end{Verbatim}\end{minipage}\end{Sbox}
\setlength{\fboxsep}{8pt}\fbox{\TheSbox}}

% \newenvironment{sample}{\VerbatimEnvironment\begin{footnotesize}\begin{Verbatim}}{\end{Verbatim}\end{footnotesize}}
\newcommand{\code}[1]{\begin{footnotesize}{\tt #1}\end{footnotesize}}
\newcommand{\comment}[1]{{\color{Green}\it\smaller #1}}