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
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
#include <iostream>
#include <cstdio>
#include <cstdlib>

int c;

void SKIP_WHITESPACE() {
    while (1) {
        c = fgetc(stdin);
        if (c != ' ' && c != '\n' && c != '\r')
            break;
    }
}

int READ_INT() {
    SKIP_WHITESPACE();
    int ret = c - '0';
    while (1) {
        c = fgetc(stdin);
        if (c < '0' || c > '9')
            break;
        ret = ret * 10 + c - '0';
    }
    return ret;
}

int x, d, h, m;

int conv(int d, int h, int m) {
    return ((d - 23) * 24 + h) * 60 + m;
}

int koniec[5];

int main(int argc, char* argv[]) {
    std::ios_base::sync_with_stdio (false);

    x = READ_INT();
    d = READ_INT();
    h = READ_INT();
    m = READ_INT();

    koniec[0] = conv(24, 23, 59);    
    koniec[1] = conv(25, 23, 59);    
    koniec[2] = conv(26, 23, 59);    
    koniec[3] = conv(27, 23, 59);    
    koniec[4] = conv(29, 23, 59);    

    std::cout << koniec[x - 1] - conv(d, h, m) + (((x == 5) && (d != 29 || h < 2)) ? -59 : 1) << "\n";
    return EXIT_SUCCESS;
}