Hello! Could you please help me with something?

When you compare something with something else (my father is younger than my mother) in English, you put the idea of "how much" right in front of the comparative.
For example, "my father is two years younger than my mother."

How about the sentences below?
"A is the tier two ranks higher than C."
"A is the tier higher than C by two ranks."

I would like to know If they sound natural.
If not, would you teach me more natural ones (which have to include the word "tier") please?

Thank you so much.