C6. F

#include <iostream>
#include <bitset>
#include <vector>
#include <map>
#include <algorithm>

using namespace std;

int main() {
#ifdef _DEBUG
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#endif // _DEBUG
    int n, m, x;
    cin >> n >> m;
    vector<int> kn(n, 0);
    for (int i = 0; i < n; ++i) {
        for (int j = 0; j < m; ++j) {
            cin >> x;
            kn[i] *= 2;
            kn[i] += x;
        }
    }

    int ans = 0;
    for (int i = 0; i < (1 << n); ++i) {
        int sum_kn = 0;
        for (int j = 0; j < 22; ++j) {
            if ((i & (1 << j)) != 0) {
                sum_kn |= kn[j];
            }
        }
        if ((1 << m) - sum_kn == 1) {
            ans++;
        }
    }

    cout << ans << "\n";
}