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  1. a = list('ahhellllloou')
  2. x = ['h','e','l','l','o']
  3. n = len(x)
  4. k = 0
  5. for j in a :
  6. if k != n and str(j) == x[k]:
  7. k += 1
  8. if k == n:
  9. break
  10. if k < n:
  11. print('NO')
  12. else :
  13. print('YES')
Success #stdin #stdout 0.02s 9108KB
stdin
abc
abc
stdout
NO