Chrono79 - Look at my comment above

I have passed every testcase besides in the case where it is expecting "I" and I am returning "E".

After some investigation it looks like the testcase is being run twice. First, setting bits to "1"; Second, setting bits to "101";

I seem to be getting the correct answer on the first iteration...

Here is a picture of a console log at the top of the solution where I am logging bits - https://ibb.co/hBH1RdJ