R=range
A=[[int(s)for s in input()]for i in R(8)]
b=1
for s in R(8**7):
	t=A[0]
	for i in R(1,8):t=[t[(j+(s>>(3*i-3)&7))&7]-A[i][j]for j in R(8)]
	b&=t!=[0]*8
print("YNeos"[b::2])