So, so, soooo confused. I have three numbers - the two in the sticky note, and the small number off the trash bin. That makes 3 numbers of 4, in an ordered format, yet when I use the keypad, no combination works when adding 0-9 as the third missing number. For example, 37_6, and I'd tried all numbers in the third slot to no avail. I have a small silver key, rusty key which I used already, step ladder which I used already (opposite lockers), coins which I used for Simon Says... I'm just stuck now, because NO number works for that third missing digit.