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  1. import re
  2. def f(x,r=""):
  3.  for v,i in(5,"V"),(4,"IV"),(1,"I"):
  4.   while x>=v:r+=i;x-=v
  5.  return r
  6. s="I"
  7. for i in[0]*int(input()):print(s);s=re.sub(r'(.)\1*',lambda m:f(len(m.group()))+m.group()[0],s)
Success #stdin #stdout 0.01s 9992KB
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stdin
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14
stdout
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I
II
III
IIII
IVI
IIIVII
IIIIIVIII
VIIVIIII
IVIIIIVIVI
IIIVIVIIVIIIVII
IIIIIVIIIVIIIIVIIIIIVIII
VIIVIIIIIVIVIIVVIIVIIII
IVIIIIVVIIVIIIVIIIIIVIIIIVIVI
IIIVIVIIIVIIIIVIIIIIVVIIVIVIIVIIIVII
https://ideone.com/ka3vCW
language:
Python 3 (python  3.12)
created:
8 years ago
visibility:
public

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