Regroup 3

Write a function @regroup@ that receives as argument a string consisting
of lower-case letters and digits, and returns a regrouping of the
characters in the string. The regrouping is as follows: in the returned
string, first there come the letters, in the same order as they came in
the argument string; and next come the digits, in the same order as they
came in the argument string.

Sample session

Problem information

Author: ProAl

Generation: 2026-01-25T16:42:14.577Z

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