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#8
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![]() R6
$3 Tri 1//2,3,6,7//2,3,6,7=$36 $2 Tri 1,7//1,7//2,3,6,8=$16 R7 $3 Tri 9//2,4,5,8//2,4,5,8=$36 $1 Tri 2,4,5,8//2,4,5,8=$12 |