2 + 3! * -5
3.2 + 7.091 * (-19.4 - 6.3)
1.5 + 24.0/2^4*2
(1.3+0.1*(4.3+7.4*19.3-72/(3.14+2.4*9.2)+96))/(64.3-13*(9-4/-3))
7 - - 3
(2^3-3)! – 2^0.5
2 + 4 * 3 + 5
*