X ( 1 , 37 , 2 , 36 ) X ( 2 , 26 , 3 , 25 ) X ( 3 , 15 , 4 , 14 ) X ( 9 , 69 , 10 , 68 ) X ( 10 , 58 , 11 , 57 ) X ( 11 , 47 , 12 , 46 ) X ( 12 , 36 , 13 , 35 ) X ( 13 , 25 , 14 , 24 ) X ( 19 , 9 , 20 , 8 ) X ( 20 , 68 , 21 , 67 ) X ( 21 , 57 , 22 , 56 ) X ( 22 , 46 , 23 , 45 ) X ( 23 , 35 , 24 , 34 ) X ( 29 , 19 , 30 , 18 ) X ( 30 , 8 , 31 , 7 ) X ( 31 , 67 , 32 , 66 ) X ( 32 , 56 , 33 , 55 ) X ( 33 , 45 , 34 , 44 ) X ( 39 , 29 , 40 , 28 ) X ( 40 , 18 , 41 , 17 ) X ( 41 , 7 , 42 , 6 ) X ( 42 , 66 , 43 , 65 ) X ( 43 , 55 , 44 , 54 ) X ( 49 , 39 , 50 , 38 ) X ( 50 , 28 , 51 , 27 ) X ( 51 , 17 , 52 , 16 ) X ( 52 , 6 , 53 , 5 ) X ( 53 , 65 , 54 , 64 ) X ( 59 , 49 , 60 , 48 ) X ( 60 , 38 , 61 , 37 ) X ( 61 , 27 , 62 , 26 ) X ( 62 , 16 , 63 , 15 ) X ( 63 , 5 , 64 , 4 ) X ( 69 , 59 , 70 , 58 ) X ( 70 , 48 , 1 , 47 ) {\displaystyle X(1,37,2,36)X(2,26,3,25)X(3,15,4,14)X(9,69,10,68)X(10,58,11,57)X(11,47,12,46)X(12,36,13,35)X(13,25,14,24)X(19,9,20,8)X(20,68,21,67)X(21,57,22,56)X(22,46,23,45)X(23,35,24,34)X(29,19,30,18)X(30,8,31,7)X(31,67,32,66)X(32,56,33,55)X(33,45,34,44)X(39,29,40,28)X(40,18,41,17)X(41,7,42,6)X(42,66,43,65)X(43,55,44,54)X(49,39,50,38)X(50,28,51,27)X(51,17,52,16)X(52,6,53,5)X(53,65,54,64)X(59,49,60,48)X(60,38,61,37)X(61,27,62,26)X(62,16,63,15)X(63,5,64,4)X(69,59,70,58)X(70,48,1,47)}
