Alarm Clock2

#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include<stdlib.h>

int main()
{
	int h1[10000] = {}, m1[10000] = {}, h2[10000] = {}, m2[10000] = {};
	h1[0] = -1; m1[0] = -1; h2[0] = -1; m2[0] = -1;
	int count = 0;
	while (h1[count] + m1[count] + h2[count] + m2[count] != 0) {
		count = count + 1;
		scanf("%d %d %d %d", &h1[count], &m1[count], &h2[count], &m2[count]);
	}
	for (int i = 1; i < count; i++) {
		if ((h2[i] * 60 + m2[i]) > (h1[i] * 60 + m1[i])) {
			printf("%d\n", (h2[i] * 60 + m2[i]) - (h1[i] * 60 + m1[i]));
		}
		else {
			printf("%d\n", (h2[i] * 60 + m2[i]) - (h1[i] * 60 + m1[i]) + 1440);
		}
	}
}