const n=10.
const m=10.
const r=17.


room(0,1,1,3,3). has(0,-1).
room(1,4,1,4,3). has(1,2).
room(2,5,1,6,4). has(2,1).
room(3,7,1,9,4). has(3,4).
room(4,10,1,10,4). has(4,2).
room(5,1,4,3,6). has(5,3).
room(6,4,4,4,4). has(6,-1).
room(7,4,5,6,6). has(7,-1).
room(8,7,5,8,8). has(8,-1).
room(9,9,5,10,7). has(9,3).
room(10,1,7,3,8). has(10,2).
room(11,4,7,6,7). has(11,2).
room(12,1,9,3,10). has(12,2).
room(13,4,8,4,10). has(13,-1).
room(14,5,8,6,10). has(14,3).
room(15,7,9,8,10). has(15,0).
room(16,9,7,10,10). has(16,-1).


