#include <iostream>

using namespace std;

int main() {
    int T;
    while (cin >> T) {
        for (int i = 0; i < T; i++) {
            int N, M;
            cin >> N >> M;
            int grid = 0;
            int count = 0;
            for (int j = 0; j < N * M; j++) {
                cin >> grid;
                if (grid == 1) {
                    count++;
                }
            }
            cout << count << endl;
        }
    }
    return 0;
}