1
1
1
2
X
1
X
1
1
1
1
1
1
1
1
1
2
X
1
X
X
1
1
X
1
X
1
1
1
2
2
1
2
1
1
1
1
1
X
1
1
1
2
2
1
2
X
1
1
X
1
1
1
1
X
2
X
1
2
1
1
1
X
1
X
1
1
X
2
X
1
2
X
1
1
1
1
1
1
1
X
2
2
1
X
1
1
1
X
1
1
1
1
X
2
2
1
X
X
1
1
1
1
X
1
X
1
2
X
1
2
1
1
1
X
1
1
1
X
1
2
X
1
2
X
1
1
1
1
X
1
X
1
2
2
1
X
1
1
1
X
1
X
1
X
1
2
2
1
X
X
1
1
1
1
1
1
X
X
2
X
1
X
1
1
1
1
1
X
1
X
X
2
X
1
X
X
1
1
X
1
1
1
X
X
2
2
1
2
1
1
1
1
1
1
1
X
X
2
2
1
2
X
1
1
X
1
X
1
1
1
2
X
1
X
1
1
X
1
1
1
1
1
1
2
X
1
X
X
1
X
X
1
X
1
1
1
2
2
1
2
1
1
X
1
1
X
1
1
1
2
2
1
2
X
1
X
X
1
1
1
1
X
2
X
1
2
1
1
X
X
1
X
1
1
X
2
X
1
2
X
1
X
1
1
1
1
1
X
2
2
1
X
1
1
X
X
1
1
1
1
X
2
2
1
X
X
1
X
1
1
X
1
X
1
2
X
1
2
1
1
X
X
1
1
1
X
1
2
X
1
2
X
1
X
1
1
X
1
X
1
2
2
1
X
1
1
X
X
1
X
1
X
1
2
2
1
X
X
1
X
1
1
1
1
X
X
2
X
1
X
1
1
X
1
1
X
1
X
X
2
X
1
X
X
1
X
X
1
1
1
X
X
2
2
1
2
1
1
X
1
1
1
1
X
X
2
2
1
2
X
1
X
X
1
X
1
1
1
2
X
1
X
1
1
2
1
1
1
1
1
1
2
X
1
X
X
1
2
X
1
X
1
1
1
2
2
1
2
1
1
2
1
1
X
1
1
1
2
2
1
2
X
1
2
X
1
1
1
1
X
2
X
1
2
1
1
2
X
1
X
1
1
X
2
X
1
2
X
1
2
1
1
1
1
1
X
2
2
1
X
1
1
2
X
1
1
1
1
X
2
2
1
X
X
1
2
1
1
X
1
X
1
2
X
1
2
1
1
2
X
1
1
1
X
1
2
X
1
2
X
1
2
1
1
X
1
X
1
2
2
1
X
1
1
2
X
1
X
1
X
1
2
2
1
X
X
1
2
1
1
1
1
X
X
2
X
1
X
1
1
2
1
1
X
1
X
X
2
X
1
X
X
1
2
X
1
1
1
X
X
2
2
1
2
1
1
2
1
1
1
1
X
X
2
2
1
2
X
1
2
X
1
X
X
1
1
2
X
1
X
1
1
1
1
1
1
X
1
1
2
X
1
X
X
1
1
X
1
X
X
1
1
2
2
1
2
1
1
1
1
1
X
X
1
1
2
2
1
2
X
1
1
X
1
1
X
1
X
2
X
1
2
1
1
1
X
1
X
X
1
X
2
X
1
2
X
1
1
1
1
1
X
1
X
2
2
1
X
1
1
1
X
1
1
X
1
X
2
2
1
X
X
1
1
1
1
X
X
X
1
2
X
1
2
1
1
1
X
1
1
X
X
1
2
X
1
2
X
1
1
1
1
X
X
X
1
2
2
1
X
1
1
1
X
1
X
X
X
1
2
2
1
X
X
1
1
1
1
1
X
X
X
2
X
1
X
1
1
1
1
1
X
X
X
X
2
X
1
X
X
1
1
X
1
1
X
X
X
2
2
1
2
1
1
1
1
1
1
X
X
X
2
2
1
2
X
1
1
X
1
X
X
1
1
2
X
1
X
1
1
X
1
1
1
X
1
1
2
X
1
X
X
1
X
X
1
X
X
1
1
2
2
1
2
1
1
X
1
1
X
X
1
1
2
2
1
2
X
1
X
X
1
1
X
1
X
2
X
1
2
1
1
X
X
1
X
X
1
X
2
X
1
2
X
1
X
1
1
1
X
1
X
2
2
1
X
1
1
X
X
1
1
X
1
X
2
2
1
X
X
1
X
1
1
X
X
X
1
2
X
1
2
1
1
X
X
1
1
X
X
1
2
X
1
2
X
1
X
1
1
X
X
X
1
2
2
1
X
1
1
X
X
1
X
X
X
1
2
2
1
X
X
1
X
1
1
1
X
X
X
2
X
1
X
1
1
X
1
1
X
X
X
X
2
X
1
X
X
1
X
X
1
1
X
X
X
2
2
1
2
1
1
X
1
1
1
X
X
X
2
2
1
2
X
1
X
X
1
X
X
1
1
2
X
1
X
1
1
2
1
1
1
X
1
1
2
X
1
X
X
1
2
X
1
X
X
1
1
2
2
1
2
1
1
2
1
1
X
X
1
1
2
2
1
2
X
1
2
X
1
1
X
1
X
2
X
1
2
1
1
2
X
1
X
X
1
X
2
X
1
2
X
1
2
1
1
1
X
1
X
2
2
1
X
1
1
2
X
1
1
X
1
X
2
2
1
X
X
1
2
1
1
X
X
X
1
2
X
1
2
1
1
2
X
1
1
X
X
1
2
X
1
2
X
1
2
1
1
X
X
X
1
2
2
1
X
1
1
2
X
1
X
X
X
1
2
2
1
X
X
1
2
1
1
1
X
X
X
2
X
1
X
1
1
2
1
1
X
X
X
X
2
X
1
X
X
1
2
X
1
1
X
X
X
2
2
1
2
1
1
2
1
1
1
X
X
X
2
2
1
2
X
1
2
X
1
X