1
x2
x2
S1
x1
x1
S1
2
3
1
x1
x2
x1
B1
S2
2
x2
x3
S2
S2
x3
A338
x1
x3
x2
x2
S2
S2
S2
S2
S2
1
4
S2
x2
x2
x2
S2
x2
S2
S2
5
6
x1
x1
S3
x1
S1
x1
x2
x1
x1
S3
S1
A238
S3
x1
S1
x1
x2
x1
x1
S3
2
S3
S3
S1
A238
7
8
x2
x4
x1
S1
x4
S2
x4
x5
x5
S1
S2
S2
S2
S2
S2
3
10
9
8
S1
x1
9A
9
x1
x1
x1
S1
9A
x2
x2
S1
x2
S1
9B
12
x1
9B
S1
x2
x2
11
9
S1
S1
4
10
S1
x1
x1
13
x1
x1
x1
S1
x2
x2
S1
14
15
x4
S1
x4
x2
S1
x4
S1
x4
x4
S1
5
16
17
S2
x1
S1
x1
x2
x2
S2
x2
S1
x2
x4
6
x2
S1
S1
S2
S2
19
18
x1
x2
S1
S3
x1
S1
x2
x1
S1
A338
x1
S3
x2
S1
x2
x4
x2
S3
S3
7
20
21
x2
S1
x2
x1
x1
S2
x2
x1
S2
S1
8
S2
22
23
x1
x1
x3
x2
x1
B2
x1
x3
x3
S2
x3
A338
S2
S2
S2
S2
9
24
22
23
x1
x1
B2
x1
S3
x1
S2
x1
S3
S2
A338
x4
x1
x1
S2
S3
10