Brainteaser iconBrainteaser - Replacement Marbles

Replacement Marbles
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xxx xxxx xx xxx xxxxxxxxxx x xxx xxx x xxxx xxxxxx. xx xxxx xxxx, xxx xxxx xxxxxxxx xxxxxx x xxxxxx. xx xx'x xxx, xxx xxxx xxxxxxx xx xxxx x xxxx xxxxxx. xx xx'x xxxx, xxx xxxx xxxxxx xxx xx xxxx. xxx xxxx xxxxx xxx xxxxxxxx xx xxxxxxx xxxxx xxx xxx xxxx xxxxxxxx xxxx xxxxxxx?

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