Round to Hundreds

Version: Phuoc Hung OJ Extended

Problem Statement

Given an integer $n$, round it to the nearest multiple of $100$, as in Python 3 round(n, -2). At an exact halfway point, choose the multiple whose hundreds digit is even. Print the resulting integer.

Input

The only line contains an integer $n$.

Output

Print one integer: the result of round(n, -2).

Subtasks

• Subtask 1 (100 points): $|n|\le10^{18}$.

Examples

Example 1

Input

149

Output

100

Explanation. For input 149, round(n, -2) produces 100. An exact halfway case is resolved by selecting the even candidate.

Example 2

Input

150

Output

200

Explanation. For input 150, round(n, -2) produces 200. An exact halfway case is resolved by selecting the even candidate.

Example 3

Input

250

Output

200

Explanation. For input 250, round(n, -2) produces 200. An exact halfway case is resolved by selecting the even candidate.