Basic template

\documentclass[12 pt]{article}
\usepackage[left=1in,right=1.3in,top=1in,bottom=1in]{geometry}
\usepackage[dvips]{graphicx}
%\usepackage{subfigure}

\usepackage{amsmath}

%\usepackage{comment}
\usepackage{lscape}

\usepackage{longtable}

\usepackage[usenames]{color}
\usepackage{url}
\usepackage{multirow}

%\usepackage{rotating}

%\usepackage{natbib, amssymb}

\newcommand{\bi}{\begin{itemize}}
\newcommand{\ei}{\end{itemize}}

\newcommand{\beq}{\begin{equation}}

\newcommand{\eeq}{\end{equation}}

\newcommand{\be}{\begin{enumerate}}

\newcommand{\ee}{\end{enumerate}}

\newcommand{\tb}{\textbf}

\begin{document}

\end{document}