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p ARGF.read.strip.split("\n")
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.map {|line| line.split("\t").map(&:to_i) }
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.map {|row| row.combination(2).map(&:sort).map(&:reverse).find {|a,b| (a.to_f / b.to_f) * 10 % 10 == 0 }}
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.map {|a,b| a / b}
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.sum
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