Write the full SNMP engine ID for:

a$.$ SNMPv$1$ for a $3$Com hub with the IPv$4$ address $50\mathrm{.}60\mathrm{.}70\mathrm{.}80$ in the $6$th to $9$th octets followed by $0$s from the $10$th octets. $$

$43$ decimal is the enterprise ID

b$.$ SNMPv$3$ for a Cisco router interface with ::$50\mathrm{.}60\mathrm{.}70\mathrm{.}80$ as its IPv$6$ address.

$9$ decimal is the enterprise ID