或者说能改对吗T_T

#include<cstdio>
using namespace std;
int main(){
    int a,b,c,d,e,f;
    scanf("%d %d %d %d",&a,&b,&c,&d);
    f=(60-b+d)%60;
    e=c-a-1+f/60;
    printf("%d %d",e,f);
    return 0;
}