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Created with Raphaël 2.1.4
23, 4
/
4
x
22
/
20, 21
4
+
18, 19
1
4
x
17
1
16
1
+
15
/
1
14, 10
1
1
4
1
+
13
+
12
1
4
x
10, 11
1
1
+
9
/
1
6
/
4
x
7, 8
/
/
1
+
6
/
+
5
/
1
4
x
2, 3
1
/
1
1
+
0
1