30
3-4
10
896
1
20
3-4
10
996
0
20
3-4
996
1
30
3-4
897
4
30
3-4
896
3
30
3-4
897
3
30
3-4
577
3
20
3-4
893
4
20
3-4
996
6
20
3-4
996
4
20
3-4
893
6
20
3-4
996
4
30
3-4
896
3
20
3-4
996
4
30
3-4
896
3
20
3-4
996
4
30
3-4
896
3
30
3-4
897
5
20
3-4
996
2
30
3-4
896
2
20
3-4
996
3
30
3-4
896
1
30
3-4
897
6
20
3-4
893
5
20
3-4
996
3
30
3-4
896
3
20
3-4
893
5
20
3-4
996
4
30
3-4
996
7