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