Write a c$++$ program for stationary store that allows the user to create a bill.

$-$ The store offers five items: pen, pencil, notepad, paper and staples with corresponding price of $1\mathrm{.}50,1\mathrm{.}00,3\mathrm{.}00,5\mathrm{.}00,$ and $7\mathrm{.}25$ respectively

$-$ The program should prompt the user to select an item and enter the quantity.

$-$ If the selected item is not from the list, the user should be ask to re$-$enter their choice

$-$ Once the user has finished selecting items by entering $$finish$$ the program should print thew bill.

$//$Sample Output

Welcome to the Stationary Store!

Available Items:

$[$A$].$ Pen $-$ RM$1\mathrm{.}5$

$[$B$]$ Pencil $-$ RM$1$

$[$C$]$ Notepad $-$RM$3$

ID$]$ Paper $-$ RM$5$

$[$E$].$ Staples $-$ RM$7.25$

$($Enter 'finish' to complete purchase$)$

Please enter the item number you'd like to purchase $($A$-$E$)$: B

Enter the quantity: $3$

Please enter the item number you'd like to purchase $($A$-$E$)$: D

Enter the quantity: $2$

Please enter the item number you'd like to purchase $($A$-$E$)$: F

Invalid choice. Please enter a valid item number.

Please enter the item number you'd like to purchase $($A$-$E$)$: C

Enter the quantity: $1$

Please enter the item number you'd like to purchase $($A$-$E$)$: E

Enter the quantity: $4$

Please enter the item number you'd like to purchase $($A$-$E$)$: finish

Thank you for your purchase!

Your Bill:

ITEM QUANTITY PRICE

$----------------------------------------------------------------------------------------------------------------$

PENCIL $3$ RM$3$

PAPER $2$ RM$10$

NOTEPAD $1$ RM$3$

STAPLES $4$ RM$29$

Total Bill: RM$45$