(1+7)*(11-8)=24
(11-(1+7))*8=24
(11-1-7)*8=24
((11-1)-7)*8=24
(11-8)*(1+7)=24
(11-8)*(7+1)=24
(11-(7+1))*8=24
(11-7-1)*8=24
((11-7)-1)*8=24
8*(11-(1+7))=24
8*(11-1-7)=24
8*((11-1)-7)=24
8*(11-(7+1))=24
8*(11-7-1)=24
8*((11-7)-1)=24
(7+1)*(11-8)=24
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