// Coded by hjxddl
#include <bits/stdc++.h>
#define ll long long
#define db double
const int N = 2e5 + 5;
int n, m;
int lowbit(int x) {
    return x & -x;
}
std::vector<int> plus(const std::vector<int> &a, const std::vector<int> &b) {
    std::vector<int> c;
    for (int i = 0; i < n; i++) {
        // std::cerr << i << " " << a[i] << " " << b[i] << " " << b[a[i] - 1] << '\n';
        c.push_back(b[a[i] - 1]);
    }
    return c;
}
void solve1() {
    std::vector<std::vector<int>> val(m + 5);
    for (int i = 1; i <= m; i++) {
        for (int j = 1; j <= n; j++) {
            int x;
            std::cin >> x;
            val[i].push_back(x);
            // std::cerr << i << " " << x << '\n';
        }
    }
    int maxn = (1 << m) - 1;
    // std::cerr << maxn << '\n';
    std::vector<std::vector<int>> ans(maxn + 5);
    std::map<std::vector<int>, bool> mp;
    for (int i = 1, j = 1; i <= m; i++, j <<= 1) {
        ans[j] = val[i];
        // for (int y : ans[j]) {
        //     std::cerr << j << " " << y << '\n';
        // }
        mp[ans[j]] = 1;
    }
    for (int i = 1, j = 2; i < m; i++, j <<= 1) {
        int maxn = j - 1;
        for (int k = 1; k <= maxn; k++) {
            // std::cerr << j << " " << k << "ssss" << '\n';
            ans[j + k] = plus(ans[j], ans[k]);
            mp[ans[j + k]] = 1;
        }
    }
    // for (auto [it, v] : mp) {
    //     for (auto x : it) {
    //         std::cout << x << " ";
    //     }
    //     std::cout << '\n';
    // }
    std::cout << mp.size() << '\n';
}
void solve2() {
    std::map<std::vector<int>, bool> mp, tmp;
    std::vector<std::vector<int>> val(m + 5);
    for (int i = 1; i <= m; i++) {
        for (int j = 1; j <= n; j++) {
            int x;
            std::cin >> x;
            val[i].push_back(x);
        }
    }
    mp[val[1]] = 1;
    for (int i = 2; i <= m; i++) {
        for (auto &[x, y] : mp)
            tmp[plus(val[i], x)] = 1;
        for (auto &[x, y] : tmp)
            mp[x] = y;
        tmp.clear();
        mp[val[i]] = 1;
    }
    std::cout << mp.size() << '\n';
}
void solve() {
    std::cin >> n >> m;
    // if (m <= 20)
    //     solve1();
    // else
    solve2();
}
int main() {
    std::ios::sync_with_stdio(0);
    std::cin.tie(0), std::cout.tie(0);
    int t = 1;
    // std::cin >> t;
    while (t--) {
        solve();
    }
    std::cout << std::flush;
    // system("pause");
}