B

#include <bits/stdc++.h>
using namespace std;

int main() {
    int t;
    cin>>t;

    while(t--){
        long long int n,m,x,y,l;
        cin >> n >> m >> x >> y >> l ;
        long long int dx = (x-1)/l + (n-x)/l + 1;
        long long int dy = (y-1)/l + (m-y)/l + 1;
        cout << dx*dy << endl;
    }
}