×-3<2 х <2+3 ×<5 -(×-3)<2 -×+3 <2 -×<2-3 -×<-1 ×>1
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×-3<2 х <2+3 ×<5 -(×-3)<2 -×+3 <2 -×<2-3 -×<-1 ×>1