/**
 *    author:  tourist
 *    created: 03.06.2018 17:59:34       
**/
#include <bits/stdc++.h>

using namespace std;

int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  int tt;
  cin >> tt;
  while (tt--) {
    int h1, m1, h2, m2, k;
    cin >> h1 >> m1 >> h2 >> m2 >> k;
    int t1 = h1 * 60 + m1;
    int t2 = h2 * 60 + m2;
    int d = t1 + k * 60 - t2;
    cout << abs(d) << '\n';
  }
  return 0;
}