98. Run-Length Decoding
EasyStringParsing
Decode a run-length encoded string such as a3b2c1 into aaabbc. Each letter is followed by a positive count that may have several digits.
Input format
A single encoded line.
Output format
The decoded string.
Example 1
Input
a3b2c1
Output
aaabbc
Example 2
Input
x10
Output
xxxxxxxxxx
Constraints
Decoded length ≤ 10⁵
Read input from standard input and print the answer to standard output. Your code is judged against 4 test cases, most of them hidden.
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