3
10
20-30
2
10
20-30
3
10
20-30
3
10
20-30
3
10
20-30
3
10
20-30
3
10
20-30
3
10
20-30
3
10
20-30
3
10
20-30
3
10
20-30
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1