#include <cstdio> #include <vector> #include <set> int main() { int n, m; std::scanf("%d%d", &n, &m); std::vector<int> cnt(n); for (int i = 0; i < m; ++i) { for (int j = 0; j < n; ++j) { int x; scanf("%d", &x); cnt[j] += x; } std::set<int> s = {0}; int x = 0; for (int j = 0; j < n; ++j) { x += cnt[j]; if (s.count(x - 777)) { puts("YES"); return 0; } s.insert(x); } } puts("NO"); return 0; }