V = (0:-1)[14:13:13] (1:-1)[2:12:12] (2:-1)[6:6:6] (3:-1)[3:1:1] (4:-1)[11:5:5] (5:-1)[7:4:4] (6:-1)[8:11:11] (7:-1)[4:10:10] (8:-1)[13:3:3] (9:-1)[5:2:2] (10:-1)[12:9:9] (11:-1)[1:0:0] (12:-1)[10:8:8] (13:-1)[9:7:7] (14:-1)[0:14:14] E = {1,0} (-1) {4,0} (-1) {2,1} (-1) {3,2} (-1) {5,2} (-1) {7,4} (-1) {6,5} (-1) {9,5} (-1) {8,7} (-1) {11,7} (-1) {9,8} (-1) {12,8} (-1) {10,9} (-1) {13,9} (-1) {6,3} (-1) {10,6} (-1) {14,10} (-1) {12,11} (-1) {13,12} (-1) {14,13} (-1)