#include<cstdio>
int         /***
nt           ///
c           *  "
l           /  ,
u            (( 
d            )"w
e           m{Ho
<           aper
c           iull
s           ntld
t           /so!
d/ */  main/*/""
i*/  (){puts/*/)
o*/  ("Hello"/*;
>*/", world!");}