def check(i):
    p = dp = 0
    q = dq = 1<<i
    for k in range(d):
        np = p
        while dq:
            x = dq&-dq
            np |= e[x.bit_length()-1]
            dq -= x
        dq,q,p = np^p, np|p, q
        if q == M: return 1
    return 0

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):
        print("No")
        exit()
print("Yes")