<script type='text/javascript'>window.mod_pagespeed_start = Number(new Date());</script>
#include <stdio.h>
int main(void){
int hi,hf,ht;
scanf("%i %i",&hi,&hf);
if (hf < hi){
hf = hf+24;
}
ht = hf - hi;
printf("O JOGO DUROU %i HORA(S)",ht);
return 0;
}