13 deletions:
2 happened at indexes: 0 (a), 2 (c), 5 (b)
3
42 insertions:
5 before index of first sequence: 0 (a)
6 inserted indexes from second sequence: 0 (c)
7 after index of first sequence: 6 (a)
8 inserted indexes from second sequence: 5 (c)
9
10
11