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Answers and rating deltas for

How would I make sure that a string doesn't contain letters, and keep the program running if it

Author Votes Δ
Aaditya Ura 1 +1.15
Reblochon Masque 0 -0.81
Scotty Jamison 0 -1.30
user8886831 0 -1.37
Last visited: Feb 3, 2018, 8:54:59 AM