А1 = (1), А2 =(2), А3 = (3), А4 = (4), А5 = (1,2), А6 =(1,3), А7 = (1, 4), А8 = (2,3), А9 = (3,4), А10 = (4,1), А11= (1,2,3), А12 = (2,3,4), А13 = (1,3,4), А14 = (1,2,4), А15 = (1,2,3,4), А16=(2,4).