board 16 16
B N N N N N B N N N N N N B N N
W C C C C C C C C C C C C C C C
W C C B C C C C C C C C W C C C
W C C C C W C C C C C B C C C C
B C N W C N C C C C C C C C C C
W C C C C W C C C N W C C C C N
W C C C N C C C C C C C C W C C
W C C C C C C B B W C C C N C C
W C C C C C C B B W C C C C C C
W C W C C C C N N C C C N W C C
W C N C C C C N W W C C C C C N
B C C C C C C C C N C C C C C C
W C C C W C C C C C C C C C C C
W C C B C C C C C C C C C C C W
W C C C C N W C C B C C C C N C
W C C C C C C W C C C W C C C C
mirrors 4
4 14 / 4
12 6 / 3
6 12 / 2
1 13 / 1
robots 5
11 15
12 9
4 5
3 4
5 3
target 0 14 13 4
solution 8
move 4 5 0
move 4 0 0
move 4 0 3
move 4 4 3
move 3 15 4
move 4 4 4
move 4 14 4
move 4 14 13