-module(helloworld). 
-export([start/0]). 

start() -> 
   io:fwrite("~w~n",[00111100 band 00001101]), 
   io:fwrite("~w~n",[00111100 bxor 00111100]), 
   io:fwrite("~w~n",[bnot 00111100]), 
   io:fwrite("~w~n",[00111100 bor 00111100]).