def check(i,d):
    p = dp = 0
    q = dq = 1<<i
    for k in range(d):
        np = p
        for j,sj in enumerate(bin(dq)[:1:-1]):
            if sj=="1": np |= e[j]
        dp,p = np^p, np|p
        if p == M: return 1
        p,q,dp,dq = q,p,dq,dp
    return 0

import sys
input = sys.stdin.readline
v,d = map(int,input().split())
d = min(4001,d)
e = [int(input()[::-1],2) for _ in range(v)]
M = (1<<v) - 1
for i in range(v):
    if not check(i,d):
        print("No")
        exit()
print("Yes")