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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 ).
Hint for R users:
The length of string is not always the same as the number of characters
For example: (Input1, Input2) –> output
(“1”, “22”) –> “1221”
(“22”, “1”) –> “1221”
function solution(a, b){return a.length < b.length ? a + b + a : b + a + b;
}