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  1. (x=gets.to_i).times{|i|puts ("X "*x)[i,x]}
Success #stdin #stdout 0s 4760KB
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8
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X X X X 
 X X X X
X X X X 
 X X X X
X X X X 
 X X X X
X X X X 
 X X X X
https://ideone.com/Mw25e
language:
Ruby (ruby 2.5.5)
created:
11 years ago
visibility:
public

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