How to setup my domain to InfinityFree? [CloudFlare]

I have used nameservers of CloudFlare for my domain, but I don’t know how to add a record in Cloudflare to my host. I dont know my IPv4 and Domain name of Infinityfree.
Please help me to add my domain to host using CloudFlare DNS!
Thank you very much!!

Username: epiz_18749119
Email: [email protected]

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