#include <bits/stdc++.h>

using namespace std;

string s[15];
int n, m;
void solve() {
    cin >> n >> m;
    int res = 0;
    for (int i = 0; i < n; i++) {
        cin >> s[i];
    }
    for (int i = 0; i < n; i++) {
        for (int j = i + 1; j < n; j++) {
            for (int k = 0; k < m; k++) {
                if (s[i][k] == '1' && s[j][k] == '1') {
                    res++;
                }
            }
        }
    }
    cout << res << endl;
}

int main() {
    //freopen("in01.txt", "r", stdin);
    //freopen("out01.txt", "w", stdout);
    int test;
    cin >> test;
    while (test--) {
        solve();
    }
    return 0;
}