\documentclass{article}
\usepackage{caption}
\usepackage{xepersian}

\newcounter{myCounter}
\newcommand{\insertM}{
	شماره
	 \stepcounter{myCounter} \arabic{myCounter}
	}

\newcounter{myCounter2}
\newcommand{\insertY}{
	نمونه
	\stepcounter{myCounter2} \alph{myCounter2}
}
\begin{document}
\insertM

\insertM

\insertM

\insertY

\insertY

\insertY

\end{document}