Permutations - Words - 2

Try First, Check Solution later

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2. Think of a solution approach, then try and submit the question on editor tab.
3. We strongly advise you to watch the solution video for prescribed approach.

1. You are given a word (may have one character repeat more than once).
2. You are required to generate and print all arrangements of these characters.

Note -> Use the code snippet and follow the algorithm discussed in question video. The judge can't
force you but the intention is to teach a concept. Play in spirit of the question.
Input Format
Input is managed for you
Output Format
Check the sample ouput and question video. 
Question Video
Constraints
0 < str.length() <= 4
Sample Input
aabb
Sample Output
aabb
abab
abba
baab
baba
bbaa


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