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  1. s=' '*input()
  2. c=97
  3. for i in s:
  4.  s=s[1:]+chr(c)
  5.  c+=1
  6.  print'a'+s
Success #stdin #stdout 0.01s 7900KB
comments (?)
stdin 
5
stdout 
a    a
a   ab
a  abc
a abcd
aabcde
https://ideone.com/WX9Kt7
language:
Python (cpython 2.7.16)
created:
10 years ago
visibility:
public

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