1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
#include <bits/stdc++.h>
using namespace std;

typedef long long int LL;

int endTimes[] = {2880, 4320, 5760, 7200, 10020}; //{2160, 3600, 7200, 10800, 12180};
int dayStartTimes[] = {0, 1440, 2880, 4320, 5760, 7200, 8640};

int x, d, h, m;

int main()
{
    ios::sync_with_stdio(0);

    cin >> x >> d >> h >> m;

    int res = endTimes[x-1] - (dayStartTimes[d-23] + 60*h + m);
    if(d >= 29 && h >= 3) {
        res += 60;
    }

    cout << res << endl;

    return 0;

}