Reverse Integer Digits

Given an integer \( n \), your task is to reverse its digits and output the reversed integer. If \( n \) is negative, the reversed integer must also be negative. Specifically, if \( n \) is represented as:

[ n = \mathrm{sign}(n) \times |n|, ]

then the reversed integer is defined as:

[ f(n) = \mathrm{sign}(n) \times \text{reverse}(|n|), ]

where reverse(|n|) denotes the integer formed by the digits of \(|n|\) in reverse order, omitting any leading zeros.

Example:

• If n = 123, then the output should be 321.
• If n = -456, then the output should be -654.
• If n = 100, then the output should be 1 (leading zeros are dropped).

You need to implement a solution that reads from standard input (stdin) and writes the output to standard output (stdout).

inputFormat

The input consists of one single line containing a single integer \( n \), which can be positive, negative, or zero.

Input Format:

outputFormat

Output the reversed integer. The result should not include any leading zeros.

Output Format:

result

## sample

123

321