Five box in vb.net (visual studio 10)

Create five boxes in vb.net, each boxes contains a value of 0-5, when user selects each of these boxes they could select this value from 0 - 5 on each of the five boxes, while a box would have atleast 0 value and maximum of 5 value. The sixth box would contain an answer to this boxes, which would be the summation of the square root of the top three amongst the five boxes. Example box A = 2 box, Box B = 3, Box C =1, Box D= 4 Box E = 1 ..... The the top three boxes is A - B - D. So, Box six which would contain the answer would now be 4 + 9 + 16 = 29.