#include<bits/stdc++.h>
#include<atcoder/all>
using namespace std;
using namespace atcoder;
#define rep(i,n)for (int i = 0; i < int(n); ++i)
#define rrep(i,n)for (int i = int(n)-1; i >= 0; --i)
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
template<class T> void chmax(T& a, const T& b) {a = max(a, b);}
template<class T> void chmin(T& a, const T& b) {a = min(a, b);}
using ll = long long;
using P = pair<int,int>;
using VI = vector<int>;
using VVI = vector<VI>;
using VL = vector<ll>;
using VVL = vector<VL>;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n, m;
    cin >> n >> m;
    VI cnts(1 << m);
    rep(_, n) {
        int s = 0;
        rep(i, m) {
            int x;
            cin >> x;
            s |= x << i;
        }
        rep(bit, 1 << m) if ((bit & s) == bit) {
            cnts[bit]++;
        }
    }
    VL dp(1 << m);
    dp[0] = 1;
    rep(s, 1 << m) {
        ll v = dp[s];
        if (v == 0) continue;
        rep(k, m) if ((s >> k & 1) == 0) {
            int t = s | 1 << k;
            if (2 * cnts[t] >= cnts[s]) dp[t] += v;
        }
    }
    cout << dp.back() << '\n';
}