help
insert
1
70
insert
2
100
insert
3
60
insert
4
70
insert
5
50
insert
6
70
insert
7
800
insert
8
70
insert
9
60
insert
10
70
insert
12
90
sum
insert
13
80
sum
ave
insert
14
90
sum
rank
1
rank
2
rank
3
rank
4
rank
5
rank
6
rank
7
rank
8
rank
9
rank
10
rank
11
rank
12
rank
13
rank
14
1
exit