Implement Run-Length Encoding on a string (e.g., "aaabbc" → "a3b2c1").

Difficulty: Medium

Phase: 6 · Mixed Logical Challenges

XP Reward: 20 XP

Topics: Mixed Logical Challenges, Medium

Supported Languages: Python, JavaScript, C, C++, Java

Problem Description

Given string S, perform Run-Length Encoding (e.g. 'aaabbc' -> 'a3b2c1'). Input Format: Read input from standard input (stdin). Output Format: Print the result to standard output (stdout).

Constraints

-10^9 <= N <= 10^9

Examples

Example 1

Input: aaabbc

Output: a3b2c1

Explanation: Sample execution for input aaabbc