\documentclass[a4paper, oneside, 10pt]{article} \usepackage[utf8x]{inputenc} \usepackage[czech]{babel} \begin{document} $\rightarrow$ $\leftarrow$ $\leftrightarrow$ $\Rightarrow$ $\Leftarrow$ $\Leftrightarrow$ \textgreater \textgreater \textless \textless -- --- $640 \times 480$ \copyright \texttrademark \textregistered ,,He thought 'It's a man's world'..." \begin{center} \line(1,0){250} \end{center} 'Ahoj' \end{document}