| Step | Symbol | Stack (Operators) | Postfix Expression |
|---|---|---|---|
| 1 | ( | ( | |
| 2 | A | ( | A |
| 3 | + | ( + | A |
| 4 | B | ( + | A B |
| 5 | ) | A B + | |
| 6 | * | * | A B + |
| 7 | C | * | A B + C |
| 8 | - | - | A B + C * |
| 9 | ( | - ( | A B + C * |
| 10 | D | - ( | A B + C * D |
| 11 | - | - ( - | A B + C * D |
| 12 | E | - ( - | A B + C * D E |
| 13 | ) | - | A B + C * D E - |
| 14 | * | - * | A B + C * D E - |
| 15 | ( | - * ( | A B + C * D E - |
| 16 | F | - * ( | A B + C * D E - F |
| 17 | + | - * ( + | A B + C * D E - F |
| 18 | G | - * ( + | A B + C * D E - F G |
| 19 | ^ | - * ( + ^ | A B + C * D E - F G |
| 20 | H | - * ( + ^ | A B + C * D E - F G H |
| 21 | ) | - * | A B + C * D E - F G H ^ + |
| 22 | End | A B + C * D E - F G H ^ + * - |
