Reverse an Integer

Source: Phước Hưng OJ

Version: Phuoc Hung OJ Extended

Problem Statement

Reverse the decimal digits of a nonnegative integer n and print the resulting integer. Leading zeros disappear, so 1200 becomes 21. Zero remains zero.

Input

One integer n.

Output

Print the reversed integer value.

Subtasks

• Subtask 1 (20%): 0<=n<=99.
• Subtask 2 (30%): 0<=n<=100000.
• Subtask 3 (50%): 0<=n<=10^9.

Examples

Example 1

Input

1200

Output

21

Explanation

Building with digits 0,0,2,1 yields 0,0,2,21.

Example 2

Input

0

Output

0

Explanation

The initial zero answer is printed.