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  1. from itertools import groupby
  2.  
  3. input = '11112222222333333333333333444555555555555555111111111777777777'
  4.  
  5. seq = []
  6. result = []
  7.  
  8. for _,g in groupby(input):
  9. 	seq = list(g)
  10. 	if len(seq) > len(result):
  11. 		result = seq
  12.  
  13. print(''.join(result))
Success #stdin #stdout 0.01s 8968KB
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stdin
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Standard input is empty
stdout
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333333333333333
https://ideone.com/oLknl7
language:
Python (cpython 2.7.16)
created:
8 years ago
visibility:
public

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