short-long-short

Short Long Short

Given 2 strings, a and b, return a string of the form short+long+short, with the shorter string on the outside and the longer string on the inside. The strings will not be the same length, but they may be empty ( zero length ).

For example: (Input1, Input2) --> output

(\"1\", \"22\") --> \"1221\"
(\"22\", \"1\") --> \"1221\"

ShortLongShort.solution(\"1\", \"22\"); // returns \"1221\"
ShortLongShort.solution(\"22\", \"1\"); // returns \"1221\"