# Simple Calculator

Execution time limit is 1 second

Runtime memory usage limit is 128 megabytes

A simple calculator accepts the following types of strings as input:

$num+num$

$num−num$

$num∗num$

$num/num$

where $num$ is a positive integer between $1$ and $10000$ inclusive.

Find the value produced by the given expression. Here +, -, *, and / denote addition, subtraction, multiplication and division respectively. All operations are performed on integers, so "$5/3$" is $1$.

## Input

One string that a simple calculator accepts.

## Output

Print the result of the given expression.

## Examples

Input #1

Answer #1

Input #2

Answer #2

Input #3

Answer #3

Submissions 11K

Acceptance rate 57%