两种情况，判断一下d<b时的情况

#include<bits/stdc++.h>
using namespace std;
int a,b,c,d;
int main(){
	cin>>a>>b>>c>>d;
	if(c>=a&&d>=b) cout<<c-a<<" "<<d-b;
	else cout<<c-a-1<<" "<<d+60-b;
}