#include using namespace std; #define rep(i, n) for (int i = 0; i < (n); ++i) using ll = long long; using ull = unsigned long long; int main() { cin.tie(nullptr)->sync_with_stdio(false); int n, m; cin >> n >> m; vector sum(n + 1, 0); rep(_, m) { int c = 0; rep(i, n) { int a; cin >> a; c += a; sum[i + 1] += c; } set st; rep(i, n + 1) { st.insert(sum[i]); if (st.contains(sum[i] - 777)) { cout << "YES" << '\n'; return 0; } } } cout << "NO" << '\n'; return 0; }