sk9822 led house number

Hi I'm building a digital house number sign with SK9822 LEDs

My house number is 383 so the Leds 7,8,9,10 35,36,37,38 should be turned off to get it.

But I am bad with code so need some help

It would be cool it De sign also shows the temperature every 5 min for 10 seconds

And like the fastled rainbow style .

Is there some who wants to help me??

Regards

Fred

No code? A clue to what you are doing would really help !