Exercise: sort mixed string

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In a file we have the string where each string has a single letter at the beginning and then a number. Sort them based on the number only, disregarding the letter.

Input:

A4
B1
A27
A3

Expected output:

B1
A3
A4
A27

File:

examples/perlarrays/sort_mixed_strings.txt

A1
A27
C1
B1
B12
A38
B3
A3

Expected output from sample file

A1
C1
B1
B3
A3
B12
A27
A38