9 letters 18,014,398,509,481,984 possibilities. (64^9) rn only 1.2996174e+14 possibilities, (37^9) Type in a code, digits from a to z, and 1 to 7.
Honestly, this was inspired by https://scratch.mit.edu/projects/1090169195, I plan to make a merging game with this, I made it 100% by me though.