#include using namespace std; int main(){ cin.tie(nullptr); ios::sync_with_stdio(false); int n, m; cin >> n >> m; int A[m][n] = {}; for(int i = 0; i < m; i++){ for(int j = 0; j < n; j++){ cin >> A[i][j]; } } for(int i = 0; i < m; i++){ for(int j = 0; j < n; j++){ if(i > 0){ A[i][j] += A[i - 1][j]; } } } bool existed = false; const int NUM = 777; for(int i = 0; i < n; i++){ int right = 0, total = 0; for(int left = 0; left < n; left++){ while(right < n && total + A[i][right] <= NUM){ total += A[i][right]; right++; } if(total == NUM){ existed = true; break; } if(left == right) right++; else total -= A[i][left]; } if(existed) break; } cout << (existed ? "YES" : "NO") << endl; return 0; }