1
2
3
1
2
3
1
2
3
1
2
1
2
3
4
1
2
1
2
3
4
1
2
1
2
3
0
0
0
0
0
2
0
168
0
6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
0
0
0
0
0
0
0
0
0
1
0
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0