Error, please use a valid command (valid commands: 'quit' 'info' 'vertices' 'nodes <City>' 'remove <firstCity>;<secondCity>' 'insert <firstCity>;<secondCity>;<distanceKilometer>;<distanceMinutes>' 'route <startCity>;<destinationCity>;<time|route|optimal|all>' 'search <startCity>;<destinationCity>;<time|route|optimal>'  [numbers can't be zero or less])
Error, please use a valid command (valid commands: 'quit' 'info' 'vertices' 'nodes <City>' 'remove <firstCity>;<secondCity>' 'insert <firstCity>;<secondCity>;<distanceKilometer>;<distanceMinutes>' 'route <startCity>;<destinationCity>;<time|route|optimal|all>' 'search <startCity>;<destinationCity>;<time|route|optimal>'  [numbers can't be zero or less])
Error, please use a valid command (valid commands: 'quit' 'info' 'vertices' 'nodes <City>' 'remove <firstCity>;<secondCity>' 'insert <firstCity>;<secondCity>;<distanceKilometer>;<distanceMinutes>' 'route <startCity>;<destinationCity>;<time|route|optimal|all>' 'search <startCity>;<destinationCity>;<time|route|optimal>'  [numbers can't be zero or less])
Error, vertex not found
Error, vertex not found
Error, vertex not found
Error, vertex not found
0
0
0
3
1
10
4
2
20
5
5
50
0
0
0
3
1
10
2
3
29
3
6
73
0
0
0
4
2
20
2
3
29
1
3
10
0
0
0
5
5
50
3
6
73
1
3
10