((1×2)×(8+4))(1×((4+8)×2))((1×(8-2))×4)(2÷(1÷(4+8)))(2×((4×1)+8))(2×((8+4)÷1))((2×(8+4))×1)((2×(8+4))÷1)((4+(1-2))×8)(((4+1)-2)×8)(4×(1×(8-2)))(4×((1×8)-2))(4÷(1÷(8-2)))((4×1)...