4
5
6
7
8
9
10
11
12
13
14
15
2
3
4
5
6
7
8
9
10
11
(10,9.14)
(8,8.14)
(13,8.74)
(9,8.77)
(11,9.26)
(14,8.1)
(6,6.13)
(4,3.1)
(12,9.13)
(7,7.26)
(5,4.74)