String Compression

Medium 40 XPStrings

Commonly asked at Zoho, Amazon, Microsoft

Compress a word by replacing each run of the same character with the character followed by the run length. For example aaabbc becomes a3b2c1.

Input
One word.
Output
The compressed word.

Sample 1

Input

aaabbc

Output

a3b2c1

Read input with input() (no prompt message) and print only the answer. Run tries the Input box; Submit checks all test cases.

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The solution unlocks after 3 submissions.