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Longest Substring With Non Repeating Characters

1. You are given a string. 2. You have to find the length of the longest substring of the given string that contains all non-repeating characters.

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Longest Substring With Non Repeating Characters

medium

1. You are given a string. 2. You have to find the length of the longest substring of the given string that contains all non-repeating characters.

Constraints

1 <= length of string <= 10^5

Format

Input

A string

Output

A number representing the length of longest substring with unique characters.

Example

Sample Input

aabcbcdbca

Sample Output

4

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