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
27
28
29
30
31
32
33
34
35
#include <bits/stdc++.h>
#define ssize(x) int(x.size())
#define all(x) x.begin(),x.end()
#define V vector
using namespace std;
typedef long long ll;
int mod = 1e09+7;
int add(int a, int b) { return a+b >= mod ? a+b-mod : a+b; }
int sub(int a, int b) { return add(mod-b, a); }
int mul(int a, int b) { return int(a*ll(b)%mod); }
int fpow(int a, int b = mod-2) {
    int res = 1;
    while(b) {
        if (b & 1) res = mul(res, a);
        b >>= 1, a = mul(a, a);
    }
    return res;
}
int divd(int a, int b) {
    return mul(a, fpow(b));
}
void answer() {
    V<int> ed(6);
    for (int i = 1, d = 25; i <= 4; ++i, ++d) ed[i] = d*60*24;
    ed[5] = 30*60*24;
    int r, d, h, m; scanf("%d%d%d%d", &r, &d, &h, &m);
    int t = d*60*24 + h*60 + m;
    if (r == 5 && (d < 29 || (d == 29 && h < 2))) t += 60;
    printf("%d\n", ed[r]-t);
}
int main() {
    int T = 1; //scanf("%d", &T);
    for (++T; --T; ) answer();
    return 0;
}