[问答题]
A postman starts at the Post Office located at O anq6dnmxlxqbvp: m3 aam7 j24..d needs toz2: hr*6layg q travel along every road illustrated by the edges in the graph :2qgzyh*la6 r below. The numbers on the graph represent distances in kilometres.
1.Find a solution to the Chinese Postman Problem for the graph.
2.Write down the length, in kilometres, of an optimal Chinese postman route.
