$1)$ABC corporation wants $12$ subnets for its Class C address $200\mathrm{.}10\mathrm{.}10\mathrm{.}0.$ No subnet needs more than ten

host addresses. Design this subnet. $2)$XYZ corporation wants $300$ subnets for its Class B address $178\mathrm{.}16\mathrm{.}0\mathrm{.}0.$ No subnet needs more than $100$

host addresses. Design this subnet