...       
       #...#     
   .##+#...#     
  #.....r..#     
  #........#   . 
  #........###.. 
 .##............ 
#......S.O......#
........<.......#
.........#.......
 ....?...# ...## 
 .........  .... 
 ........#   ... 
  ........    .  
   ...###.       
    ..   =       
         .