Curr: 4, D: 2, pos2
1, 2, 8, 9, 10, 
Curr: 2, D: 1, pos1
1, 8, 9, 10, 
Curr: 1, D: 7, pos8
8, 9, 10, 
Curr: 8, D: 1, pos9
9, 10, 
Curr: 9, D: 1, pos10
10, 
12 5