def has_subarray(arr, target): prefix_set = {0} current_sum = 0 for num in arr: current_sum += num if (current_sum - target) in prefix_set: return True prefix_set.add(current_sum) return False n, m = map(int, input().split()) current_sums = [0] * n found = False for _ in range(m): a = list(map(int, input().split())) for j in range(n): current_sums[j] += a[j] if has_subarray(current_sums, 777): found = True break print("YES" if found else "NO")