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def printOp
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swap print print nl
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enddef
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8 var a 3 var b
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"a = " a printOp
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"b = " b printOp
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"a + b = " a b + printOp
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"a - b = " a b - printOp
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"a * b = " a b * printOp
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"int(a / b) = " a b / int printOp
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"a mod b = " a b mod printOp
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"a ^ b = " a b power printOp
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