eolymp
Competitions

PP1 Week 1 Contest 2

Opposite number

Read one integer and print the opposite integer.

Input

One integer n, no more than 1018 by absolute value.

Output

Print the opposite integer.

Time limit 1 second
Memory limit 128 MiB
Input example #1
10
Output example #1
-10
Author Matviychuk Sergiy Volodymyrovych
Source "ABC programming"