Longest Run Length

Given a string S, your task is to determine the length of the longest consecutive run of identical characters in the string. A run is defined as a contiguous sequence where all characters are the same. If the input string is empty, the output should be 0.

Example:

• Input: aabbbbccddddddeee  —  Output: 6
• Input: xyz  —  Output: 1

Note: Ensure that your solution reads from standard input and prints the result to standard output.

inputFormat

The input consists of a single line containing the string S. The string may be empty.

outputFormat

Output a single integer representing the length of the longest run of identical characters in S.

aabbbbccddddddeee

6