#12.
from random import*
a=[ ]
for i in range(8):
a.append([ ])
for j in range(8):
if (i+j)%2==0:a[i].append(0)
else: a[i].append(1)
k=1
while k<=7:
i=randint(0,7)
j=randint(0,7)
if a[i][j]==1:
a[i][j]=2
k+=1
for i in range(8):
for j in range(8):
print(a[i][j],end=' ')
print()