Is there any way of generating a 4-digit code for my game?

Hi, I'm trying to generate a 4-digit code for my game but all the things I've tried don't work. Does anybody know any way to do this?

Just random 4 digits? What things did you try?

Try zeropad(int(random(10000)), 4)

Thanks so much, I put that code in and it works!

(Also, I tried generating different numbers in 4 different text sprites then combining those numbers into one text sprite)