Please write in C Language

Description

Please write a program that read in anexpression and give its result.

Input

Input will be an expression content only digit, +, -, /, * and space.

Output

Please output the result of expression without consider the priority of +, -, *, /.

When you do thedivision, please round down to integer.

Sample Input 1

1 + 2 * 3 / 4

Sample Output 1

2