__________________
  |                |
  | snu entatrance |
  |________________| 
               
  ______________      
  |  ___  ___  |        
  | |___||___| |           
  |  ___  ___  |            
  | |___||___| |        
  |  ___  ___  |                             
  | |___||___| |                        
  |  ___  ___  |   
  | |___||___| |   
  |     __ __  |    
  |    ( ||| ) |
  |    ( ||| ) |
  ^^^^^^^^^^^^^^^^^^^^^^^^^^