import sys

N, M = map(int, sys.stdin.read().split())

sums = [0 for _ in range(N)]
nums = [0 for _ in range(N + 1)]
done = False

for _ in range(M):
    num = 0
    nums[0] = 0
    for i, n in enumerate(map(int, sys.stdin.read().split())):
        sums[i] += n
        nums[i + 1] = sums[i] + num
        num += sums[i]
        for j in range(0, i + 1):
            if nums[i + 1] - nums[j] == 777:
                done = True

if done:
    print('YES')
else:
    print('NO')