X
0
1
X
0
2
X
0
3
X
0
2
X
0
4
X
0
2
X
0
1
X
0
1
X
0
1
X
0
1
X
0
2
X
0
23
X
0
5
X
0
3
X
0
1
X
0
1
X
0
1
X
0
1
X
0
1
X
0
1
X
0
1
X
0
1
X
0
4