#264. makeAbba
makeAbba
Background
Description
Given two strings, a and b, return the result of putting them together in the order abba, e.g. "Hi" and "Bye" returns "HiByeByeHi".
Format
Input
Output
Samples
Hi" "Bye
"HiByeByeHi"
Yo" "Alice
"YoAliceAliceYo"
What" "Up
"WhatUpUpWhat"
Limitation
1s, 1024KiB for each test case.