5
____________________
7
13
____________________
15
2
____________________
4
16
____________________
18
1
____________________
3
11
____________________
13
4
____________________
6
14
____________________
16
6
____________________
8
10
____________________
12
3
____________________
5
12
____________________
14
8
____________________
10
15
____________________
17
18
____________________
20
9
____________________
1
1
