6 10 16
0 0.1:1 0.8:3 0.1:4 south
0 0.4:0 0.6:1 east
1 0.5:2 0.5:4 south
1 1:2 east
2 1:2 stuck
3 1:3 stuck
4 0.6:3 0.4:4 west
4 1:5 east
5 0.9:2 0.1:5 north
5 1:4 west