You just have to do it in steps look at total length, subtract the two end lengths which are fixed, then there are some rules about the remaining holes. you would start with say lower left corner and then keep track of your points. I draw a little sketch on a piece of paper as I go so I can remember the point numbers used in making the circles. You just need a double polar to work out each new x & y.
Code:
; 0.0 is to left
(setq up (/ pi 2.0)) ; 90 up
; pi left
(setq dn (* 1.5 pi)) ; 270 down
(setq pt1 (getpoint))
(setq x 25
y 30)
(setq pt2 (polar (polar pt1 0.0 x) up y))
(command "Circle" pt2 12) ; draws circle to the right