atc/games/easy

   1 update = 7;
   2 newplane = 12;
   3 width = 15;
   4 height = 15;
   5
   6 exit:           (  7  0 x ) ( 14  0 z ) ( 12 14 q ) (  0 14 e ) ;
   7
   8 beacon:         ( 12  7 ) ;
   9
  10 airport:        (  7  8 w ) ;
  11
  12 line:           [ (  1  1 ) (  6  6 ) ]
  13                 [ (  7  9 ) ( 12 14 ) ]
  14                 [ (  7  0 ) (  7 14 ) ]
  15                 [ (  1  7 ) ( 11  7 ) ] ;