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import "/fmt" for Fmt
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var mapRange = Fn.new { |a, b, s| b.from + (s - a.from) * (b.to - b.from) / (a.to - a.from) }
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var a = 0..10
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var b = -1..0
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for (s in a) {
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var t = mapRange.call(a, b, s)
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var f = (t >= 0) ? " " : ""
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System.print("%(Fmt.d(2, s)) maps to %(f)%(t)")
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}
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