eolymp
Problems

Conditional statement - 1

Conditional statement - 1

Time limit 1 second
Memory limit 128 MiB

Find the value of y according to condition:

Input data

One integer x (-1000x1000).

Output data

Print the value of y according to the conditional statement above.

Examples

Input example #1
2
Output example #1
2
Input example #2
10
Output example #2
17