Evaluate Mathematical Expression

You are given a string representing a mathematical expression. The expression consists of single-digit non-negative integers and three binary operators: + (addition), - (subtraction), and * (multiplication). The multiplication operator has higher precedence than addition and subtraction (i.e., $$ '' > '+' \text{ and } '-' $$). Note that the expression does not contain any parentheses. Your task is to evaluate the expression and print the result.

For example, given the expression 3+52</code>, multiplication is performed first resulting in 3+(5*2)=13.

inputFormat

A single line containing the mathematical expression as a string. For example: 3+5*2.

outputFormat

Output a single integer which is the result of evaluating the expression. For example, for the input 3+5*2, the correct output is 13.## sample

3+5*2

13