Consider the packets exchanged in TCP connection setup between Host A and Host B. Assume that Host A's initial sequence number is 2345 and Host B's initial sequence number is 7777. What are the sequence numbers and ack numbers below (i.e., w, x, y, and z) that correctly construct the sequence:

- Host A to Host B: SYN seqno [w] - Host B to Host A: SYN/ACK seqno [x] ackno [y] - Host A to Host B: ACK ackno [z]