2
4
4
0
1
1
0
1
1
0
1
1
0
1
1
0
1
1
0
1
1
0
2
1
0
2
1
0
2
1
0
2
2
0
2
1
0
2
1
0
2
1
0
2
1
0
2
1
0
8
28
0
3
5
0
3
1
0
4
1
