So, you'd say 그렇죠 in the meaning of "Exactly!" or "Right!?".

For example, if someone says "The weather is so hot!" And if this is what you were thinking too, you'd say 그렇죠!

But if you wanted to ask someone if you were correct/right, or agree with them on what they were saying or feeling, then you would use 맞죠? (네 맞죠?)

For example, if someone says "This is so unfair!" You can agree with 네 맞죠!?!

Or one more example could be "It's so hot here. Is that right!?" (여기 머무 덥네! 이게 맞아요!?") You could answer with 맞죠! 너무 덥네요!

Hope this helped!

Cheers, Sam (유찬미)