import sys
input = sys.stdin.readline
v,d = map(int,input().split())
e = [int(input(),2) for _ in range(v)]
M = (1<<v) - 1
for i in range(v):
    p = 1<<i
    for _ in range(min(d,4001)):
        np = 0
        for j in range(v):
            if p>>j&1: np |= e[j]
        p = np
    if p != M:
        print("No")
        exit()
print("Yes")