.Sc r ewbal l ( C)t hr oughar m( A)andi nt oar m( B) ,unt i l t i ght 2.Sc r ewl oop( E)ont oni ppl e( D)t i l t i ght 3.Pl ac egl as s( G)ons oc k et( F) ,t hens ec ur ewi t hs oc k etr i ng( H)t i l l t i ght 4.Adj us tar mt opos i t i ononebyone.