graph {
 "0,0" -- "0,1" [label=7];
 "0,0" -- "1,0" [label=8];
 "0,1" -- "0,2" [label=7];
 "0,1" -- "1,1" [label=9];
 "1,0" -- "1,1" [label=10];
 "1,0" -- "2,0" [label=8];
 "0,2" -- "0,3" [label=8];
 "0,2" -- "1,2" [label=7];
 "1,1" -- "1,2" [label=10];
 "1,1" -- "2,1" [label=8];
 "0,3" -- "0,4" [label=7];
 "0,3" -- "1,3" [label=8];
 "1,2" -- "1,3" [label=8];
 "1,2" -- "2,2" [label=10];
 "0,4" -- "0,5" [label=10];
 "0,4" -- "1,4" [label=9];
 "1,3" -- "1,4" [label=10];
 "1,3" -- "2,3" [label=8];
 "0,5" -- "0,6" [label=10];
 "0,5" -- "1,5" [label=9];
 "1,4" -- "1,5" [label=9];
 "1,4" -- "2,4" [label=10];
 "0,6" -- "0,7" [label=8];
 "0,6" -- "1,6" [label=7];
 "1,5" -- "1,6" [label=10];
 "1,5" -- "2,5" [label=10];
 "0,7" -- "0,8" [label=8];
 "0,7" -- "1,7" [label=9];
 "1,6" -- "1,7" [label=10];
 "1,6" -- "2,6" [label=8];
 "0,8" -- "0,9" [label=7];
 "0,8" -- "1,8" [label=9];
 "1,7" -- "1,8" [label=9];
 "1,7" -- "2,7" [label=8];
 "0,9" -- "1,9" [label=9];
 "1,8" -- "1,9" [label=9];
 "1,8" -- "2,8" [label=9];
 "0,10" -- "0,9" [label=10];
 "0,10" -- "0,11" [label=10];
 "0,10" -- "1,10" [label=7];
 "1,9" -- "2,9" [label=10];
 "0,11" -- "0,12" [label=8];
 "0,11" -- "1,11" [label=10];
 "1,10" -- "1,9" [label=7];
 "1,10" -- "1,11" [label=7];
 "1,10" -- "2,10" [label=7];
 "0,12" -- "0,13" [label=8];
 "0,12" -- "1,12" [label=7];
 "1,11" -- "1,12" [label=10];
 "1,11" -- "2,11" [label=7];
 "0,13" -- "0,14" [label=7];
 "0,13" -- "1,13" [label=9];
 "1,12" -- "1,13" [label=8];
 "1,12" -- "2,12" [label=7];
 "0,14" -- "0,15" [label=8];
 "0,14" -- "1,14" [label=10];
 "1,13" -- "1,14" [label=10];
 "1,13" -- "2,13" [label=8];
 "0,15" -- "1,15" [label=10];
 "1,14" -- "1,15" [label=9];
 "1,14" -- "2,14" [label=9];
 "1,15" -- "2,15" [label=8];
 "2,0" -- "2,1" [label=8];
 "2,0" -- "3,0" [label=7];
 "2,1" -- "2,2" [label=9];
 "2,1" -- "3,1" [label=7];
 "2,2" -- "2,3" [label=8];
 "2,2" -- "3,2" [label=7];
 "2,3" -- "2,4" [label=7, penwidth=3];
 "2,3" -- "3,3" [label=7, penwidth=3];
 "2,4" -- "2,5" [label=9, penwidth=3];
 "2,4" -- "3,4" [label=9];
 "2,5" -- "2,6" [label=7, penwidth=3];
 "2,5" -- "3,5" [label=8];
 "2,6" -- "2,7" [label=8, penwidth=3];
 "2,7" -- "2,8" [label=9, penwidth=3];
 "2,8" -- "2,9" [label=7, penwidth=3];
 "2,9" -- "3,9" [label=7];
 "2,10" -- "2,9" [label=7, penwidth=3];
 "2,10" -- "2,11" [label=7];
 "2,10" -- "3,10" [label=8, penwidth=3];
 "2,11" -- "2,12" [label=10];
 "2,11" -- "3,11" [label=10];
 "2,12" -- "2,13" [label=8];
 "2,12" -- "3,12" [label=7];
 "2,13" -- "2,14" [label=7];
 "2,13" -- "3,13" [label=7];
 "2,14" -- "2,15" [label=10];
 "2,14" -- "3,14" [label=9];
 "2,15" -- "3,15" [label=9];
 "3,0" -- "3,1" [label=7];
 "3,0" -- "4,0" [label=8];
 "3,1" -- "3,2" [label=10];
 "3,1" -- "4,1" [label=8];
 "3,2" -- "3,3" [label=7, penwidth=3];
 "3,2" -- "4,2" [label=7, penwidth=3];
 "3,3" -- "3,4" [label=8];
 "3,3" -- "4,3" [label=7];
 "3,4" -- "3,5" [label=9];
 "3,4" -- "4,4" [label=9];
 "3,5" -- "4,5" [label=7];
 "3,9" -- "4,9" [label=10];
 "3,10" -- "3,9" [label=10];
 "3,10" -- "3,11" [label=9];
 "3,10" -- "4,10" [label=8, penwidth=3];
 "3,11" -- "3,12" [label=10];
 "3,11" -- "4,11" [label=10];
 "3,12" -- "3,13" [label=9];
 "3,12" -- "4,12" [label=7];
 "3,13" -- "3,14" [label=7];
 "3,13" -- "4,13" [label=8];
 "3,14" -- "3,15" [label=9];
 "3,14" -- "4,14" [label=10];
 "3,15" -- "4,15" [label=9];
 "4,0" -- "4,1" [label=10];
 "4,0" -- "5,0" [label=9];
 "4,1" -- "4,2" [label=9];
 "4,1" -- "5,1" [label=7];
 "4,2" -- "4,3" [label=7];
 "4,2" -- "5,2" [label=8, penwidth=3];
 "4,3" -- "4,4" [label=8];
 "4,3" -- "5,3" [label=10];
 "4,4" -- "4,5" [label=8];
 "4,4" -- "5,4" [label=10];
 "4,5" -- "5,5" [label=10];
 "4,9" -- "5,9" [label=7];
 "4,10" -- "4,9" [label=9];
 "4,10" -- "4,11" [label=10];
 "4,10" -- "5,10" [label=8, penwidth=3];
 "4,11" -- "4,12" [label=9];
 "4,11" -- "5,11" [label=10];
 "4,12" -- "4,13" [label=9];
 "4,12" -- "5,12" [label=10];
 "4,13" -- "4,14" [label=9];
 "4,13" -- "5,13" [label=8];
 "4,14" -- "4,15" [label=7];
 "4,14" -- "5,14" [label=10];
 "4,15" -- "5,15" [label=10];
 "5,0" -- "5,1" [label=10];
 "5,0" -- "6,0" [label=8];
 "5,1" -- "5,2" [label=8];
 "5,1" -- "6,1" [label=10];
 "5,2" -- "5,3" [label=9];
 "5,2" -- "6,2" [label=10, penwidth=3];
 "5,3" -- "5,4" [label=9];
 "5,3" -- "6,3" [label=8];
 "5,4" -- "5,5" [label=9];
 "5,4" -- "6,4" [label=10];
 "5,5" -- "6,5" [label=7];
 "5,9" -- "6,9" [label=10];
 "5,10" -- "5,9" [label=10];
 "5,10" -- "5,11" [label=7, penwidth=3];
 "5,10" -- "6,10" [label=7];
 "5,11" -- "5,12" [label=7, penwidth=3];
 "5,11" -- "6,11" [label=7];
 "5,12" -- "5,13" [label=10, penwidth=3];
 "5,12" -- "6,12" [label=10];
 "5,13" -- "5,14" [label=7, penwidth=3];
 "5,13" -- "6,13" [label=7];
 "5,14" -- "5,15" [label=7, penwidth=3];
 "5,14" -- "6,14" [label=7];
 "5,15" -- "6,15" [label=8, penwidth=3];
 "6,0" -- "6,1" [label=9];
 "6,0" -- "7,0" [label=9];
 "6,1" -- "6,2" [label=7, penwidth=3];
 "6,1" -- "7,1" [label=8, penwidth=3];
 "6,2" -- "6,3" [label=7];
 "6,2" -- "7,2" [label=7];
 "6,3" -- "6,4" [label=9];
 "6,3" -- "7,3" [label=10];
 "6,4" -- "6,5" [label=7];
 "6,4" -- "7,4" [label=7];
 "6,5" -- "7,5" [label=8];
 "6,9" -- "7,9" [label=10];
 "6,10" -- "6,9" [label=9];
 "6,10" -- "6,11" [label=9];
 "6,10" -- "7,10" [label=7];
 "6,11" -- "6,12" [label=8];
 "6,11" -- "7,11" [label=8];
 "6,12" -- "6,13" [label=9];
 "6,12" -- "7,12" [label=8];
 "6,13" -- "6,14" [label=7];
 "6,13" -- "7,13" [label=10];
 "6,14" -- "6,15" [label=9];
 "6,14" -- "7,14" [label=9];
 "6,15" -- "7,15" [label=8, penwidth=3];
 "7,0" -- "7,1" [label=9, penwidth=3];
 "7,0" -- "8,0" [label=10];
 "7,1" -- "7,2" [label=10];
 "7,1" -- "8,1" [label=10];
 "7,2" -- "7,3" [label=9];
 "7,2" -- "8,2" [label=10];
 "7,3" -- "7,4" [label=10];
 "7,3" -- "8,3" [label=10];
 "7,4" -- "7,5" [label=7];
 "7,4" -- "8,4" [label=10];
 "7,5" -- "8,5" [label=9];
 "7,9" -- "8,9" [label=8];
 "7,10" -- "7,9" [label=9];
 "7,10" -- "7,11" [label=10];
 "7,10" -- "8,10" [label=7];
 "7,11" -- "7,12" [label=10];
 "7,11" -- "8,11" [label=7];
 "7,12" -- "7,13" [label=10];
 "7,12" -- "8,12" [label=9];
 "7,13" -- "7,14" [label=9];
 "7,13" -- "8,13" [label=10];
 "7,14" -- "7,15" [label=10];
 "7,14" -- "8,14" [label=7];
 "7,15" -- "8,15" [label=9];
 "8,0" -- "8,1" [label=9];
 "8,0" -- "9,0" [label=7];
 "8,1" -- "8,2" [label=7];
 "8,1" -- "9,1" [label=7];
 "8,2" -- "8,3" [label=9];
 "8,2" -- "9,2" [label=9];
 "8,3" -- "8,4" [label=7];
 "8,3" -- "9,3" [label=8];
 "8,4" -- "8,5" [label=9];
 "8,4" -- "9,4" [label=10];
 "8,5" -- "9,5" [label=9];
 "8,9" -- "9,9" [label=10];
 "8,10" -- "8,9" [label=9];
 "8,10" -- "8,11" [label=9];
 "8,10" -- "9,10" [label=9];
 "8,11" -- "8,12" [label=8];
 "8,11" -- "9,11" [label=8];
 "8,12" -- "8,13" [label=7];
 "8,12" -- "9,12" [label=9];
 "8,13" -- "8,14" [label=9];
 "8,13" -- "9,13" [label=10];
 "8,14" -- "8,15" [label=8];
 "8,14" -- "9,14" [label=9];
 "8,15" -- "9,15" [label=8];
 "9,0" -- "9,1" [label=7];
 "9,1" -- "9,2" [label=9];
 "9,2" -- "9,3" [label=8];
 "9,3" -- "9,4" [label=9];
 "9,4" -- "9,5" [label=10];
 "9,10" -- "9,9" [label=9];
 "9,10" -- "9,11" [label=8];
 "9,11" -- "9,12" [label=7];
 "9,12" -- "9,13" [label=8];
 "9,13" -- "9,14" [label=10];
 "9,14" -- "9,15" [label=7];
 "10,0" -- "9,0" [label=7];
 "10,0" -- "10,1" [label=7];
 "10,0" -- "11,0" [label=8];
 "10,1" -- "9,1" [label=10];
 "10,1" -- "10,2" [label=10];
 "10,1" -- "11,1" [label=7];
 "10,2" -- "9,2" [label=9];
 "10,2" -- "10,3" [label=8];
 "10,2" -- "11,2" [label=10];
 "10,3" -- "9,3" [label=7];
 "10,3" -- "10,4" [label=8];
 "10,3" -- "11,3" [label=9];
 "10,4" -- "9,4" [label=8];
 "10,4" -- "10,5" [label=10];
 "10,4" -- "11,4" [label=9];
 "10,5" -- "9,5" [label=7];
 "10,5" -- "11,5" [label=7];
 "10,9" -- "9,9" [label=7];
 "10,9" -- "11,9" [label=9];
 "10,10" -- "9,10" [label=10];
 "10,10" -- "10,9" [label=8];
 "10,10" -- "10,11" [label=9];
 "10,10" -- "11,10" [label=9];
 "10,11" -- "9,11" [label=7];
 "10,11" -- "10,12" [label=9];
 "10,11" -- "11,11" [label=10];
 "10,12" -- "9,12" [label=8];
 "10,12" -- "10,13" [label=10];
 "10,12" -- "11,12" [label=10];
 "10,13" -- "9,13" [label=8];
 "10,13" -- "10,14" [label=8];
 "10,13" -- "11,13" [label=7];
 "10,14" -- "9,14" [label=9];
 "10,14" -- "10,15" [label=8];
 "10,14" -- "11,14" [label=9];
 "10,15" -- "9,15" [label=9];
 "10,15" -- "11,15" [label=9];
 "11,0" -- "11,1" [label=8];
 "11,0" -- "12,0" [label=10];
 "11,1" -- "11,2" [label=9];
 "11,1" -- "12,1" [label=9];
 "11,2" -- "11,3" [label=8];
 "11,2" -- "12,2" [label=10];
 "11,3" -- "11,4" [label=10];
 "11,3" -- "12,3" [label=10];
 "11,4" -- "11,5" [label=8];
 "11,4" -- "12,4" [label=10];
 "11,5" -- "12,5" [label=7];
 "11,9" -- "12,9" [label=10];
 "11,10" -- "11,9" [label=8];
 "11,10" -- "11,11" [label=9];
 "11,10" -- "12,10" [label=7];
 "11,11" -- "11,12" [label=9];
 "11,11" -- "12,11" [label=10];
 "11,12" -- "11,13" [label=8];
 "11,12" -- "12,12" [label=7];
 "11,13" -- "11,14" [label=9];
 "11,13" -- "12,13" [label=8];
 "11,14" -- "11,15" [label=10];
 "11,14" -- "12,14" [label=10];
 "11,15" -- "12,15" [label=8];
 "12,0" -- "12,1" [label=8];
 "12,0" -- "13,0" [label=8];
 "12,1" -- "12,2" [label=8];
 "12,1" -- "13,1" [label=7];
 "12,2" -- "12,3" [label=7];
 "12,2" -- "13,2" [label=10];
 "12,3" -- "12,4" [label=7];
 "12,3" -- "13,3" [label=10];
 "12,4" -- "12,5" [label=10];
 "12,4" -- "13,4" [label=8];
 "12,5" -- "12,6" [label=10];
 "12,5" -- "13,5" [label=10];
 "12,9" -- "13,9" [label=7];
 "12,10" -- "12,9" [label=9];
 "12,10" -- "12,11" [label=8];
 "12,10" -- "13,10" [label=8];
 "12,11" -- "12,12" [label=8];
 "12,11" -- "13,11" [label=10];
 "12,12" -- "12,13" [label=10];
 "12,12" -- "13,12" [label=8];
 "12,13" -- "12,14" [label=8];
 "12,13" -- "13,13" [label=8];
 "12,14" -- "12,15" [label=7];
 "12,14" -- "13,14" [label=10];
 "12,15" -- "13,15" [label=9];
 "13,0" -- "13,1" [label=10];
 "13,0" -- "14,0" [label=9];
 "13,1" -- "13,2" [label=9];
 "13,1" -- "14,1" [label=10];
 "13,2" -- "13,3" [label=8];
 "13,2" -- "14,2" [label=8];
 "13,3" -- "13,4" [label=8];
 "13,3" -- "14,3" [label=9];
 "13,4" -- "13,5" [label=7];
 "13,4" -- "14,4" [label=10];
 "12,6" -- "12,7" [label=9];
 "12,6" -- "13,6" [label=9];
 "13,5" -- "13,6" [label=8];
 "13,5" -- "14,5" [label=9];
 "12,7" -- "12,8" [label=9];
 "12,7" -- "13,7" [label=8];
 "13,6" -- "13,7" [label=9];
 "13,6" -- "14,6" [label=10];
 "12,8" -- "12,9" [label=9];
 "12,8" -- "13,8" [label=7];
 "13,7" -- "13,8" [label=8];
 "13,7" -- "14,7" [label=7];
 "13,8" -- "13,9" [label=9];
 "13,8" -- "14,8" [label=7];
 "13,9" -- "14,9" [label=10];
 "13,10" -- "13,9" [label=10];
 "13,10" -- "13,11" [label=8];
 "13,10" -- "14,10" [label=10];
 "13,11" -- "13,12" [label=9];
 "13,11" -- "14,11" [label=8];
 "13,12" -- "13,13" [label=7];
 "13,12" -- "14,12" [label=9];
 "13,13" -- "13,14" [label=8];
 "13,13" -- "14,13" [label=7];
 "13,14" -- "13,15" [label=7];
 "13,14" -- "14,14" [label=10];
 "13,15" -- "14,15" [label=10];
 "14,0" -- "14,1" [label=9];
 "14,0" -- "15,0" [label=10];
 "14,1" -- "14,2" [label=7];
 "14,1" -- "15,1" [label=8];
 "14,2" -- "14,3" [label=9];
 "14,2" -- "15,2" [label=7];
 "14,3" -- "14,4" [label=9];
 "14,3" -- "15,3" [label=9];
 "14,4" -- "14,5" [label=9];
 "14,4" -- "15,4" [label=7];
 "14,5" -- "14,6" [label=7];
 "14,5" -- "15,5" [label=10];
 "14,6" -- "14,7" [label=7];
 "14,6" -- "15,6" [label=9];
 "14,7" -- "14,8" [label=7];
 "14,7" -- "15,7" [label=9];
 "14,8" -- "14,9" [label=10];
 "14,8" -- "15,8" [label=8];
 "14,9" -- "15,9" [label=8];
 "14,10" -- "14,9" [label=9];
 "14,10" -- "14,11" [label=9];
 "14,10" -- "15,10" [label=8];
 "14,11" -- "14,12" [label=7];
 "14,11" -- "15,11" [label=10];
 "14,12" -- "14,13" [label=10];
 "14,12" -- "15,12" [label=8];
 "14,13" -- "14,14" [label=8];
 "14,13" -- "15,13" [label=8];
 "14,14" -- "14,15" [label=7];
 "14,14" -- "15,14" [label=10];
 "14,15" -- "15,15" [label=10];
 "15,0" -- "15,1" [label=9];
 "15,1" -- "15,2" [label=8];
 "15,2" -- "15,3" [label=9];
 "15,3" -- "15,4" [label=10];
 "15,4" -- "15,5" [label=10];
 "15,5" -- "15,6" [label=8];
 "15,6" -- "15,7" [label=7];
 "15,7" -- "15,8" [label=10];
 "15,8" -- "15,9" [label=7];
 "15,10" -- "15,9" [label=7];
 "15,10" -- "15,11" [label=7];
 "15,11" -- "15,12" [label=7];
 "15,12" -- "15,13" [label=7];
 "15,13" -- "15,14" [label=8];
 "15,14" -- "15,15" [label=9];
}