Write a program that calculates an expression consisting of three numbers, three digits of arithmetic operations (signs
«+»,
«–»,
« ;*» and
«/») and
parentheses. The input is a character string representing an arithmetic expression. All numbers are integers. Operation
«/» performed as integer division.
Examples
| # |
Input |
Output |
| 1 |
2*(3+45)+4 |
100 |
| 2 |
2*3/(5-2) |
2 |
Запрещенные операторы:eval