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#10
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![]() R7
$1 Tri 5,6//1,5,6//1,2,3,5,6,7,9=$20 $5 Tri 5//1,6//1,6=$10 $5 Tri 1,6//5//1,6=$10 R12 $5 Tri 5//6,7,8//6,7,8=$30 $5 Tri 6,7,8//5//6,7,8=$30 |