Write a complete PL$/$SQL block do the following.

a$.$ Input the price and quantity from keyboard for each item.

b$.$ Calculate the amount by multiplying the price by the quantity for each item.

c$.$ Store the price, quantity, and amount inside the table for each item.

d$.$ If the quantity is less than $50$ : place $"$C$"$ in the $$q$\_$r$\_$status$$ field.

e$.$ If the quantity between $50$ and $100$: place $"$B$"$ in the $$q$\_$r$\_$status$$ field.

f$.$ If the quantity is more than $100$ : place $"$A$"$ in the $$q$\_$r$\_$status$$ field.

g$.$ Print the result on the screen.