How do I print only the letters of a list in uppercase?

New to python and working on lists. The items in my lists consists of letters and numbers, and I’m wondering how to print the letters in uppercase. This is what I have.

dirtbike = ['yz450', 'kx450', 'rmz450', 'ktm450', 'fc450']
message = f"I would love to own a {dirtbike[0]}! As well as a {dirtbike[1]}!"
print(message)

I would like the print out to be ‘YZ450’ & ‘KX450’ but have only managed to print the whole message in upper using message.upper

>Solution :

You can use the method upper inside the brackets.

message = f"I would love to own a {dirtbike[0].upper()}! As well as a {dirtbike[1].upper()}!"