Write a subroutine that outputs the cost of fitting a carpet using 3 parameters:
• Width of the room in metres.
• Length of the room in metres.
• Price of carpet per m2.
Underlay for the carpet will also be required at £3 per m2.
Grippers will be required at £1/m: width * 2 + length * 2
The fitting fee is £50.
Test the program with a 7 x 6m room and a £17m2 carpet.
E.g. 7m x 6m room with a £17 carpet = £714 + £126 + £26 + £50 = £916