What is the difference between VIP, S and A Ticket?

[VIP ticket]

Turn on my camera/microphone + Send Fixed-Message + Watch Live + Participate in Live Chatting + Can Hear VIP Participants' Voices

• It's a special ticket with limited number of seats.
• Can turn on camera/microphone and communicate with artists in both directions.(Only artists can see my screen.)
• Can send private message to the artist through fixed-message board.(Only artists can see fixed messages.)

[S Ticket]

Watch Live + Participate in Live Chatting + Can Hear VIP Participants' Voices

[A Ticket]

Watch Live + Participate in Live Chatting