1
x2
x
x1
x2
x2
2
3
x2
x4
x2
x2
x2
x4
x2
x2
1
4
5
1
x2
x4
x2
x4
x2
x2
x2
7
6
x1
x2
x4
x2
x2
x1
x1
x1
x2
A238
A238
2
8
9
1
x2
x4
x4
3
10
11
11
x2
x2
x1
x2
x2
x2
x4
x4
x4
x8
x4
x4
A238
A238
4
12
13
1
x2
x2
x2
x2
x4
15
14
x1
x1
x2
x2
x2
x2
x2
x2
5
16
17
1
x2
x2
x2
x2
18
19
x1
x1
x1
x2
x2
x4
6
20
21
1
x4
x1
x2
x1
x1
x2
x2
x1
x1
x1
22
19
21
23
x2
7
24
x4
x4
25
23
24
x2
x6
x8
x6
A238
A338
8