1update = 5; 2newplane = 5; 3width = 30; 4height = 21; 5 6exit: ( 12 0 x ) ( 0 6 d ) ( 29 12 a ) ( 26 20 q ) ; 7 8beacon: ( 12 6 ) ; 9 10airport: ( 8 11 x ) ; 11 12line: [ ( 12 1 ) ( 12 5 ) ] 13 [ ( 1 6 ) ( 11 6 ) ] 14 [ ( 8 7 ) ( 8 10 ) ] 15 [ ( 28 12 ) ( 19 12 ) ] 16 [ ( 13 7 ) ( 25 19 ) ] ; 17 18