23 maesceinon waunfawr royal mail

It looks like you're trying to decode a Welsh phrase!

"23 maesceinon waunfawr royal mail" can be translated to:

"23 Main Street, Waunfawr, Royal Mail"

Here's a breakdown of the translation:

• "Maesceinon" means "Main Street"
• "Waunfawr" is a place name, likely referring to a town or village in Wales
• "Royal Mail" is a postal service, indicating that this is a postal address

So, it appears that this is a postal address in Waunfawr, Wales, with the main street being the 23rd one.