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  1. e = %w(■ □).cycle
  2. for _ in 0..9
  3. 	for _ in 0..9
  4. 		print e.next
  5. 	end
  6. 	puts e.next && nil
  7. end
  8.  
Success #stdin #stdout 0.01s 8208KB
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stdin
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Standard input is empty
stdout
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■□■□■□■□■□
□■□■□■□■□■
■□■□■□■□■□
□■□■□■□■□■
■□■□■□■□■□
□■□■□■□■□■
■□■□■□■□■□
□■□■□■□■□■
■□■□■□■□■□
□■□■□■□■□■
https://ideone.com/tmR5Y6
language:
Ruby (ruby 2.5.5)
created:
147 days ago
visibility:
secret

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