import sys
from sys import stdin
from collections import deque

V,D = map(int,stdin.readline().split())

E = [ stdin.readline()[:-1] for i in range(V) ]

for s in range(V):

    q = deque([s])
    d = [float("inf")] * (2*V)
    d[s] = 0
    

    while q:
        
        nowori = q.popleft()
        v = nowori
        side = 0

        if v >= V:
            v -= V
            side = 1

        for nex in range(V):
            if E[v][nex] == "1":
                nexori = nex + V * (side^1)
                if d[nexori] > d[nowori] + 1:
                    d[nexori] = d[nowori] + 1
                    q.append(nexori)

    #print (s,d)
    maxd = 0
    if D % 2 == 0:
        for i in range(V):
            maxd = max(maxd , d[i])
            if d[i] > D:
                print ("No")
                sys.exit()
    else:
        for i in range(V,2*V):
            maxd = max(maxd , d[i])
            if d[i] > D:
                print ("No")
                sys.exit()

    if maxd * 2 <= D:
        break
        

print ("Yes")