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  1. b,o=input(),""
  2. for a,n in zip(b,b[1:]):o+=`a`+"-"*(a%10==1and a+n in(2,3,12,13))
  3. print o+`b[-1]`
Success #stdin #stdout 0s 9032KB
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[2,12,12,2,1,12,12,1,1,2,12,12,2,11,2,12,1]
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2121221-12121-1-21212211-2121
https://ideone.com/70XYzw
language:
Python (cpython 2.7.16)
created:
7 years ago
visibility:
public

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