#include <bits/stdc++.h>

using namespace std;


int main()
{
    int q;
    cin >> q;
    while(q > 0) {
        q--;
        int h1, m1, h2, m2, k;
        cin >> h1 >> m1 >> h2 >> m2 >> k;
        cout << k * 60 - (h2 * 60 + m2 - h1 * 60 - m1) << "\n";
    }
    return 0;
}