X
0
2
X
0
2
X
0
3
X
0
1
X
0
2
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
1
X
0
1
X
0
1
X
0
1
X
0
1
X
0
1
X
0
2
X
0
1