Homework: oneTwo

Imported By: Geoffrey Challen

/ Version: 2021.7.0

/ Adapted from CodingBat

Given a non-nullString, compute a newString` by moving the first character to come after the next two , so "abc" yields "bca". Repeat this process for each subsequent group of 3 characters, so "abcdef" yields "bcaefd". Ignore any group of fewer than 3 characters at the end.