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

def check2(i):
    p = 1<<i
    for _ in range(min(d,T)):
        np = 0
        for j,sj in enumerate(bin(p)[:1:-1]):
            if sj=="1": np |= e[j]
        if np & MM: return 1
        p = np
    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
T = 0
for i in range(min(100,v)):
    c = check(i)
    if not c:
        print("No")
        exit()
    T = max(T,c)
MM = (1<<min(100,v)) - 1
for i in range(100,v):
    if not check2(i,d-T):
        print("No")
        exit()
print("Yes")