dddddddd                                                                           
             d::::::d                                             iiii            tttt          
             d::::::d                                            i::::i        ttt:::t          
             d::::::d                                             iiii         t:::::t          
             d:::::d                                                           t:::::t          
     ddddddddd:::::d  xxxxxxx      xxxxxxx rrrrr   rrrrrrrrr    iiiiiii  ttttttt:::::ttttttt    
   dd::::::::::::::d   x:::::x    x:::::x  r::::rrr:::::::::r   i:::::i  t:::::::::::::::::t    
  d::::::::::::::::d    x:::::x  x:::::x   r:::::::::::::::::r   i::::i  t:::::::::::::::::t    
 d:::::::ddddd:::::d     x:::::xx:::::x    rr::::::rrrrr::::::r  i::::i  tttttt:::::::tttttt    
 d::::::d    d:::::d      x::::::::::x      r:::::r     r:::::r  i::::i        t:::::t          
 d:::::d     d:::::d       x::::::::x       r:::::r     rrrrrrr  i::::i        t:::::t          
 d:::::d     d:::::d       x::::::::x       r:::::r              i::::i        t:::::t          
 d:::::d     d:::::d      x::::::::::x      r:::::r              i::::i        t:::::t    tttttt
 d::::::ddddd::::::dd    x:::::xx:::::x     r:::::r             i::::::i       t::::::tttt:::::t
  d:::::::::::::::::d   x:::::x  x:::::x    r:::::r             i::::::i       tt::::::::::::::t
   d:::::::::ddd::::d  x:::::x    x:::::x   r:::::r             i::::::i         tt:::::::::::tt
    ddddddddd   ddddd xxxxxxx      xxxxxxx  rrrrrrr             iiiiiiii           ttttttttttt