2
1
3 7
3 7
3 7
3 7
3
3
2
2
1 70 7
2
3
1
1 7
1 300
1
1 70
1 70 7
1
1
1 70 7
1
3
3
3
3
3
3
3
3
3
1937
31937 1
31937 2
31937 3
