import sys
import numpy as np

readline = sys.stdin.readline
read = sys.stdin.read

v, d = map(int, readline().split())
a = [list(map(int,readline().rstrip('\n'))) for i in range(v)]
a = np.array(a)
ans = "Yes" if np.all(np.linalg.matrix_power(a,min(d,v))) else "No"
print(ans)