Remove Repeated Values between Lists

I have “n” element in a faced (fold-able Steel Plates) and the rule to control them is that the first 5 elements are folded in different angles then the whole group (5 elements) is mirrored. so the final result should be that element 0 & 9 have the same angle element 1&8 have the same angle and so on. I tried to create the following list selection to control the steel plates

0…n…9

1…n…8

2…n…7

3…n…6

4…n…5

5…n…5.

The issue i am facing is that lists contain same elements index number. For example, element with index 15, 45, are listed in 1st ,3rd and 6th lists. How to make every list have a unique set of elements? I tried using set difference and other list nodes but it seems dead end.

Thanks

 

Pairs.dyn

20151130-1