Unique Characters Checker

You are given a string composed of printable ASCII characters. Your task is to determine if all characters in the string are unique.

Formally, let ( S ) be a string. You need to check whether every character in ( S ) appears only once. If so, print True; otherwise, print False.

For example, if ( S = \texttt{abcdef} ), then the answer is True; if ( S = \texttt{apple} ), then the answer is False.

inputFormat

The input consists of a single line containing a string ( S ). The string may include spaces and other printable ASCII characters.

outputFormat

Output a single line: print True if all characters in the string are unique, and False otherwise.## sample

abcdef

True