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  1. import itertools
  2.  
  3. A = [2,1,2,3,2,3,4,3,4,5,4,5]
  4. B = [1,0,1]
  5.  
  6. print([x-y for x, y in itertools.izip(A, itertools.cycle(B))])
Success #stdin #stdout 0.01s 7852KB
stdin
Standard input is empty
stdout
[1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4]