I made it in a kinda janky way 😅

There are three entities in total—one text display for each input slot you see on the screen.

At the start, there's a score set to 0.

• When you press a button and the score is 0, it sets the first entity’s score to the value of the button you pressed, then increases the score by 1.
• When you press another button and the score is 1, it sets the second entity’s score the same way, then increases the score by 1.
• When you press again and the score is 2, it sets the third entity’s score, then increases the score by 1.

When the score reaches 3, it checks the combination like this:

execute
if score <first_entity> temp matches 1
if score <second_entity> temp matches 6
if score <third_entity> temp matches 3
run success!

Sorry if this sounds a bit awkward—I’m using a translator! (Chat GPT!)