28
[0,1042,1036]-[3,1,2,6,-1];[1,1038,1196]-[3,7,2,0,-1];[2,944,1111]-[3,1,0,4,-1];[3,1109,1106]-[5,2,0,1,22];[4,861,1114]-[8,9,14,2,-1];[5,1196,1105]-[25,24,18,20,22];[6,1037,943]-[14,13,17,0,20];[7,1034,1284]-[23,26,12,1,-1];[8,882,1234]-[12,9,4,-1,-1];[9,770,1193]-[8,4,10,14,-1];[10,700,1267]-[11,9,-1,-1,-1];[11,776,1365]-[12,10,-1,-1,-1];[12,885,1331]-[11,7,23,8,-1];[13,993,875]-[14,6,17,19,-1];[14,879,869]-[9,4,13,6,15];[15,844,769]-[16,14,-1,-1,-1];[16,944,690]-[17,15,-1,-1,-1];[17,1036,769]-[13,6,16,19,-1];[18,1289,1020]-[25,24,19,5,22];[19,1248,915]-[6,17,13,20,18];[20,1349,862]-[19,21,6,5,-1];[21,1483,927]-[22,20,-1,-1,-1];[22,1437,1049]-[5,18,21,24,3];[23,1173,1315]-[24,26,7,12,-1];[24,1262,1244]-[25,23,5,18,22];[25,1382,1303]-[27,24,18,5,-1];[26,1231,1438]-[27,23,7,-1,-1];[27,1350,1413]-[25,26,-1,-1,-1];