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x = 1
y = a = 2
while true
  z = x + y
  x = y
  y = z
  if z > 4000000
    p a
    break
  end
  a += z if z % 2 == 0
end

Success #stdin #stdout 0.02s 7408KB

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Standard input is empty

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https://ideone.com/1pkkSu

language:

Ruby (ruby 2.5.5)

created:

visibility:

public

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