#include <cstdio>

using namespace std;

 int main()
{
    int a , b;
    scanf("%d %d", &a, &b);

    int res;
    if( a < b) res = b - a;
    else res = b - a + 24;

    printf("O JOGO DUROU %d HORA(S)\n",res);

    return 0;
}