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  1. s=' '*input()
  2. c=97
  3. for i in s:s=s[1:]+chr(c);c+=1;print'a'+s
Success #stdin #stdout 0.01s 7900KB
comments (?)
stdin 
7
stdout 
a      a
a     ab
a    abc
a   abcd
a  abcde
a abcdef
aabcdefg
https://ideone.com/j65LN3
language:
Python (cpython 2.7.16)
created:
10 years ago
visibility:
public

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