Find the 33rd two characters, and where they belong

Question

I'm working on a puzzle. I'm about 75% of the way through solving the puzzle.

The only thing left is you hash 33 two character pairs. I have 32 two character pairs.

Possible characters are [a-z, A-Z, 0-9]

Positionally the 33rd two character pair can be at the beginning, in between every other pair, or at the end.

Once a 33 two character pair is generated.

My programming skills are so rusty, that this one is causing me brain cramps.

Any help would be greatly appreciated.

Answer 1

Certainly not elegant, but Give it a go

The result is

11aD1wwya0dCV4fkL01oDy0YeYY7qIXHn, which is made by adding 6e to the end. The hash it produces is the first one.