Swap First and Last Character

You are given a string s as input. Your task is to swap the first and the last characters of this string. If the string has a length of 1 or is empty, simply output the string as is.

For example, if s is hello, swapping the first and last characters would result in oellh.

Note: Use efficient input/output methods since all data is read from stdin and written to stdout.

inputFormat

The input consists of a single line containing the string s. The string may be empty or contain one or more characters.

outputFormat

Output a single line containing the resultant string after swapping its first and last characters.

hello

oellh