1.  41
 2.  41
 3.  40
 4.  40
 5.  40
 6.  39
 7.  37
 8.  36
 9.  35
10.  34
=== cut between A and B
11.  33
12.  33
13.  32
=== cut between B and C
14.  20
15.  19
16.  17
17.  14
18.  14
19.  10
20.  10
=== cut between C and D
21.   9
22.   6
=== cut between D and F
23.   1