1---10-10-10---7-8----8-10-7-----8-7-8-7-8-8-7-8-7-8
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1--10-10-10---7-8---8-10--7--8-7-8-7--5--
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 1)-10-10-10-7-8---8-10------------------------
2)---------------------10---8-7-8-7-8--8-7-8-7-8
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1))-10-10-10-7-8---8-10-----------------------10
2)---------------------10---8-7-8-7-8--8-7-8-7
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