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"Pues" is a conjunction which is often translated as "then", and "¡Claro que sí!" is an interjection which is often translated as "Of course!". Learn more about the difference between "pues" and "¡Claro que sí!" below.
pues()
A conjunction is a word that connects words, phrases, clauses, or sentences (e.g., The cat and the dog slept.).
a. then
Estoy cansado. - Pues vete a dormir.I am tired. - Go to sleep then.
No sé qué decirte, pues.I don't know what to tell you, then.
2. (emphatic)
¡Claro que sí!()
An interjection is a short utterance that expresses emotion, hesitation, or protest (e.g., Wow!).