Unique Characters Checker

You are given a string and must determine if all the characters in the string are unique. The check is case sensitive: for example, 'Aa' is considered as two unique characters whereas 'AaA' contains a duplicate. The input string consists solely of alphabetic characters (and possibly an empty string). This problem requires you to implement a function to verify uniqueness of characters in the given string.

Note: An empty string is considered to have all unique characters.

The answer should read input from stdin and output the result to stdout as either True or False.

inputFormat

The input will consist of a single line containing a string s. The string can be empty or contain alphabetic characters. Read the input from stdin.

outputFormat

Output True if every character in the string is unique, otherwise output False. The output should be written to stdout.

Python

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