n,m=map(int,input().split())
a=[list(map(int,input().split())) for i in'.'*m]

b=[[0]*n for i in'.'*m]
b[0]=[x for x in a[0]]
for i in range(1,m):
  for j in range(n):
    b[i][j]=b[i-1][j]+a[i][j]
v='NO'
for l in b:
  for i in range(n):
    for j in range(len(l)-i):
      if sum(l[i:1+i+j])==777:
        v='YES'
        break
print(v)