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Answers and rating deltas for

How to join items of list, but use a different delimiter for the last item?

Author Votes Δ
swinkler 3 +4.31
Paul Boddington 2 +0.53
Luiggi Mendoza 2 +0.11
Rasmus Kaj 1 +0.12
Rasmus Kaj 1 +0.12
Bohemian 0 -0.69
Naveenkumar Chinnakalappa -2 -3.63
Last visited: Jan 2, 2016, 9:47:38 PM