6 lines
210 B
Text
6 lines
210 B
Text
: middle3
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| s sz |
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abs asString dup ->s size ->sz
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sz 3 < ifTrue: [ "Too short" println return ]
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sz isEven ifTrue: [ "Not odd number of digits" println return ]
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sz 3 - 2 / 1+ dup 2 + s extract ;
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