Joining ends of strings in certain order with repeated ID's

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# 8  
Old 03-25-2014
Originally Posted by verse123
Here's a sample input for an example of 3 occurrences.
What if you have more than 3 or less than 3 occurrences...what then are the rules etc...
# 9  
Old 03-25-2014
If there are for example 5 occurrences, then it should be like this:

1) last substring of line 5 with beginning substring of line 5
2) last substring of line 5 with beginning substring of line 4
3) last substring of line 4 with beginning substring of line 3
4) last substring of line 3 with beginning substring of line 2
5) last substring of line 1 with beginning substring of line 1

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