How to set port 8080 to my domain and port 80 to a subdomain in cloudflare

Hello everyone! I'm running a webserver at port 8080 and a nextcloud server at port 80 on my network. I have my domain set up in cloudflare, and I'm wondering that how can I add the port80 to a subdomain and the port 8080 to the regular domain name? Your help would be much appreciated.