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  1. string = input()
  2. counter = 1
  3.  
  4. for i in range(len(string)-1):
  5. if string[i] == ' ':
  6. break
  7. elif string[i] == string[i+1]:
  8. counter += 1
  9. else:
  10. print(string[i] + str(counter), end='')
  11. counter = 1
  12.  
  13. 1
Success #stdin #stdout 0.02s 28384KB
stdin
aaaabbcaa
stdout
a4b2c1