#include <stdio.h>

int lagDuration(int h1, int m1, int h2, int m2, int k);

int lagDuration(int h1, int m1, int h2, int m2, int k) {
    int lag, t1, t2;
    t1 = (h1 + k) * 60 + m1;
    t2 = h2 * 60 + m2;
    lag = t1 - t2;
    return lag;
}

int main(void) {
    int n, index, h1, m1, h2, m2, k, lag;
    scanf("%d", &n);
    for (index = 0; index < n; index += 1) {
        scanf("%d %d %d %d", &h1, &m1, &h2, &m2);
        scanf("%d", &k);
        lag = lagDuration(h1, m1, h2, m2, k);
        printf("%d\n", lag);
    }
    return 0;
}