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#7
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![]() R6
$18 Ex 8//1,7,9=$54 R7 $11 Ex 2//5,7,8=$33 $1 SH5 2,7//2,7//5,6,8//5,6,8//5,6,8=$12 ![]() ![]() $1 SH5 2-7-5-6-8=$1 ![]() ![]() |