SPOILERS!!!! If you don’t want the solution to the safe puzzle, DO NOT READ FURTHER!!!!
Hint: If your answer doesn’t make sense, try adding some numbers.
STEP 1- Find all numbers in the room.
STEP 2- Find the letters that correspond with the numbers in ABC order. (1=A, 2=B, etc.)
STEP 3- Unscramble the letters, and you have your answer!
the answer is “HELP”