$[10$ pts$]$ Host A and B are communicating over a TCP connection, and Host B has alreadyreceived from A all bytes up through byte $99.$ Suppose Host A then sends three segments toHost B back$-$to$-$back. The first, second and third segments contain $30,50,$ and $70$ bytes ofdata, respectively. In the first segment, the sequence number is $100,$ the source port number is$4321,$ and the destination port number is $80.$ Host B sends an ACK whenever it receives asegment from Host A$,$ i$.$e$.,$ no delayed ACK. $[2$ pts$]$ If the second segment arrives before the first segment, in the ACKs of twoarriving segments, what are the acknowledgment numbers of the first and secondarriving segment, respectively?