using static System.Console;

class Main;

$\{$

static void Main$()$;

WriteLine$("$This program displays some keyboard punctuation"$)$;

WriteLine$("!$ exclamation point"$)$;

WriteLine$("$@ at$-$sign"$)$;

WriteLine$("$# pound sign or hash mark"$)$;

WriteLine$("$$ dollar sign"$)$;

$\}$