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local robot = require("robot")
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return {
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forward = function(n)
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if not n then n = 1 end
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for _ = 1, n do
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while not robot.forward() do end
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end
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end,
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back = function(n)
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if not n then n = 1 end
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for _ = 1, n do
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while not robot.back() do end
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end
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end,
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}
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