#C4957. Special Palindrome Checker

    ID: 48552 Type: Default 1000ms 256MiB

Special Palindrome Checker

Special Palindrome Checker

A string is considered a Special Palindrome if it meets two conditions: (1) it reads the same forwards and backwards, and (2) its length is even. Formally, a string \(S\) is a special palindrome if \(|S| \equiv 0 \pmod{2}\) and \(S = S^R\), where \(S^R\) denotes the reverse of \(S\).

Given a string S, determine whether it is a Special Palindrome. Output 1 if it is a Special Palindrome, and 0 otherwise.

inputFormat

The input consists of a single line containing the string S. The string may be empty and can contain any ASCII characters.

outputFormat

Output a single integer: 1 if S is a Special Palindrome, otherwise 0.

## sample
abba
1

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