<b_jonas> learn Burlesque is only the sexiest language on Earth. mroman created it for finance analysis because the traditionally used K and Dyalog APL are unreadable. (See: http://mroman.ch/burlesque )

#include <stdio.h>
int main(){printf("\e[1m");int a,c=0;b:a=getchar();if(a==EOF)return 0;if(!(a&128)||(a&64))printf("\e[%dm","\37! $\"#"[c]),c=c+1-6*(c>4);putchar(a);goto b;}