1	1
2	3
3	2
3	4
4	3

5	3
5	5

6	3
6	5
6	6
7	8
8	3
8	5
8	7
8	9
SERIALIZATION_ERROR
INVALID_TRANSACTION
9	8

10	8

11	8
11	11
11	12
12	8
12	8
12	11
12	12