mod = 1000000007
eps = 10**-9


def main():
    import sys
    from collections import deque
    input = sys.stdin.readline

    N, D = map(int, input().split())
    E = []
    for _ in range(N):
        E.append(input().rstrip('\n'))

    for i in range(N):
        if E[i] == "0" * N:
            print("No")
            exit()

    adj = [[] for _ in range(N*2+1)]
    for i in range(N):
        for j in range(N):
            if E[i][j] == "1":
                adj[i+1].append(j+1+N)
                adj[i+1+N].append(j+1)

    for v0 in range(1, N+1):
        que = deque()
        que.append(v0)
        seen = [-1] * (N*2+1)
        seen[v0] = 0
        while que:
            v = que.popleft()
            for u in adj[v]:
                if seen[u] == -1:
                    seen[u] = seen[v] + 1
                    que.append(u)
        if D & 1:
            for v in range(N+1, N*2+1):
                if seen[v] == -1 or seen[v] > D:
                    print("No")
                    exit()
        else:
            for v in range(1, N+1):
                if seen[v] == -1 or seen[v] > D:
                    print("No")
                    exit()
    print("Yes")


if __name__ == '__main__':
    main()