V = (0:-1)[0:0:0] (1:-1)[0:0:0] (2:-1)[0:0:0] (3:-1)[0:2:2] (4:-1)[0:0:0] (5:-1)[0:0:0] (6:-1)[0:0:0] (7:-1)[0:0:0] (8:-1)[0:0:0] (9:-1)[4:0:0] (10:-1)[0:0:0] (11:-1)[0:0:0] (12:-1)[0:0:0] (13:-1)[3:0:0] (14:-1)[0:1:1] (15:-1)[0:0:0] (16:-1)[0:0:0] (17:-1)[0:0:0] (18:-1)[0:0:0] (19:-1)[0:0:0] (20:-1)[0:0:0] (21:-1)[0:0:0] (22:-1)[0:0:0] (23:-1)[0:0:0] (24:-1)[0:0:0] (25:-1)[0:0:0] (26:-1)[0:0:0] (27:-1)[1:0:0] (28:-1)[0:0:0] (29:-1)[0:0:0] (30:-1)[0:0:0] (31:-1)[0:0:0] (32:-1)[0:0:0] (33:-1)[0:4:4] (34:-1)[0:0:0] (35:-1)[0:0:0] (36:-1)[0:3:3] (37:-1)[2:0:0] (38:-1)[0:0:0] (39:-1)[0:0:0] (40:-1)[0:0:0] E = {1,0} (-1) {6,0} (-1) {2,1} (-1) {7,1} (-1) {3,2} (-1) {8,2} (-1) {4,3} (-1) {9,3} (-1) {10,4} (-1) {7,6} (-1) {13,6} (-1) {8,7} (-1) {14,7} (-1) {9,8} (-1) {15,8} (-1) {10,9} (-1) {16,9} (-1) {11,10} (-1) {12,11} (-1) {17,11} (-1) {14,13} (-1) {18,13} (-1) {15,14} (-1) {16,15} (-1) {19,15} (-1) {21,18} (-1) {23,19} (-1) {25,20} (-1) {22,21} (-1) {28,21} (-1) {23,22} (-1) {29,22} (-1) {24,23} (-1) {30,23} (-1) {25,24} (-1) {31,24} (-1) {26,25} (-1) {32,25} (-1) {27,26} (-1) {33,26} (-1) {29,28} (-1) {35,28} (-1) {30,29} (-1) {36,29} (-1) {31,30} (-1) {37,30} (-1) {32,31} (-1) {38,31} (-1) {33,32} (-1) {39,32} (-1) {34,33} (-1) {40,33} (-1) {12,5} (-1) {34,27} (-1) {36,35} (-1) {37,36} (-1) {38,37} (-1) {39,38} (-1) {40,39} (-1)