I the Internet each network interface of a computer si as$-$ signed one, or more, Internet addresses. The nature of these Internet addresses is dependent on network size. For the In$-$ ternet Standard regarding reserved network numbers $($STD $2),$ each address si a$32-$bit string which falls into one of the fol$-$ lowing three classes: $(1)$ Aclass Aaddress, used for the largest networks, begins with a$0$which si then followed by aseven$-$bit network number, and then a $24-$bit local address. However, one is restricted from using the network numbers of al O$\text{'}$s or all I$\text{'}$s and the local addresses of al Os$\text{'}$ or al I$\text{'}$s$.(2)$ The class B address is meant for an intermediate$-$sized network. This ad$-$

dress starts with the two$-$bit string $10,$ which si folowed by a $14-$bit network number and then a $16-$bit local address. But the

local addresses of al Os$\text{'}$ or al I$\text{'}$s are not permitted. $(3)$ Class C

addresses are used for the smallest networks. These addresses

consist of the three$-$bit string $110,$ followed by a $21-$bit network

number, and then an eight$-$bit local address. Once again hte local

addresses of al Os$\text{'}$ or al I$\text{'}$s are excluded. How many different

addresses of each class are available on hte Internet, for this Internet Standard?