| In an undirected graph, (i,j) means that node i and node j are connected with an undirected edge. | |
| The nodes are numbered from 0 to 12, and the edges are: (2,6) (7,5) (3,0) (5,10) (1,0) (0,2) (8,10) (7,1) (6,0) (3,4) (0,5) (2,11) (10,4) (9,8) (0,4) (12,7). |