#include <bits/stdc++.h> // PLEASE

using namespace std;
typedef long long ll;
typedef pair <int, int> pp;
#define MAXN 300005
#define MAXM 1005
#define MAXP 25
#define A first
#define B second
#define MP make_pair
#define PB push_back
const ll INF = 2e9+13;
const ll MOD = 1e9+7;
int q;
int main(void)
{
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	cin >> q;
	while(q--) {
		int h1, h2, m1, m2, k;
		cin >> h1 >> m1 >> h2 >> m2 >> k;
		m1 += h1 * 60;
		m2 += h2 * 60;
		int should = m1 + k * 60;
		cout << should-m2 << endl;
	}
}