map-error

10
##start
start 0 1
##end
end 1 0
0 0 0
1 1 1
2 2 2
3 3 3
4 4 4
5 5 5
6 6 6
7 7 7
8 8 8
9 9 9
0-4
0-2
1-3
2-3
3-4
4-2
4-0
5-4
6-0
6-5
6-0
7-1
8-2
8-5
9-3
9-6
start-5
start-3
end-3
end-7