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Score : $100$ points

### Problem Statement

The function ReLU is defined as follows:

Given an integer $x$, find $ReLU(x)$.

### Constraints

• $x$ is an integer.
• $-10 \leq x \leq 10$

### Input

Input is given from Standard Input in the following format:

$x$


### Output

Print the answer as an integer.

### Sample Input 1

1


### Sample Output 1

1


We have $1 \geq 0$, so $ReLU(1) = 1$.

### Sample Input 2

0


### Sample Output 2

0


### Sample Input 3

-1


### Sample Output 3

0