Testing CsGraph class
 =======================

  starting walk at node1
  not showing backtracks
  node1 edge12
  node2 edge23
  node3
  node2 edge24
  node4
  node5

  starting walk at node2
  show backtracks
 -- node2 edge23
 -- node3 edge31
 -- node1
 -- node3
 -- node2 edge24
 -- node4
 -- node2
 -- node5

Press any key to continue . . .