Solve this!!

Try to get 56 in all the blue boxes, using the drop-down lists!

	=	=	=	=	=	=
	=	3 7 15 31	3 7 15 31	3 7 15 31	3 7 15 31	=
	=	3 7 15 31	3 7 15 31	3 7 15 31	3 7 15 31	=
	=	3 7 15 31	3 7 15 31	3 7 15 31	3 7 15 31	=
	=	3 7 15 31	3 7 15 31	3 7 15 31	3 7 15 31	=
	=	=	=	=	=	=

Script by : Paul Barendregt . If excited about this problem, write an algorithm to solve this. After all, computers are meant to solve these things only.

-- Varun