4
normal
2
2
0
0
1
1
4
3
1
2
1
2
2
1
2
3
0
0
4
1
1
1
2
2
2
2
2
4
2
3
0
1
4
1
3
0
2
1
2
0
2
1
1
3
0
1
1
2
3
