#include <stdio.h>int main(){ int a, b, c, d, k; scanf("%d %d %d %d", &a, &b, &c, &d); if(c+d < 59) { c += d; } else if(c+d > 59) { if(b+d/60 > 59) { b += c/60; if(a+ b/60 > 24) { a % b = 0; c = 0; } else { a += b/60; } } }}
