main = (^<>^) (*<>*) (-<>-)
(-<>-) = [1..20]
(*<>*) = (///) . (><)
(><) y | (@.@) y==0 = "ふぃずばず"
| (@-@) y==0 = "ばず"
| (@&@) y==0 = "ふぃず"
(@.@) = (@^@) 15
(@-@) = (@^@) 5
(@&@) = (@^@) 3
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