#6输入：

8
1 1 1 1 1 1 1 1
1 0 0 0 0 0 0 1
1 0 1 1 1 1 0 1
1 0 1 0 0 1 1 1
1 0 1 0 0 0 0 0
1 0 1 1 1 1 1 1
1 0 0 0 0 0 0 1
1 1 1 1 1 1 1 1

#6输出：

1 1 1 1 1 1 1 1
1 2 2 2 2 2 2 1
1 2 1 1 1 1 2 1
1 2 1 0 0 1 1 1
1 2 1 0 0 0 0 0
1 2 1 1 1 1 1 1
1 2 2 2 2 2 2 1
1 1 1 1 1 1 1 1