CCCCCCCCCCCCC                     iiii                      kkkkkkkk             iiii          tttt          
     CCC::::::::::::C                    i::::i                     k::::::k            i::::i      ttt:::t          
   CC:::::::::::::::C                     iiii                      k::::::k             iiii       t:::::t          
  C:::::CCCCCCCC::::C                                               k::::::k                        t:::::t          
 C:::::C       CCCCCCrrrrr   rrrrrrrrr  iiiiiii     cccccccccccccccc k:::::k    kkkkkkkiiiiiiittttttt:::::ttttttt    
C:::::C              r::::rrr:::::::::r i:::::i   cc:::::::::::::::c k:::::k   k:::::k i:::::it:::::::::::::::::t    
C:::::C              r:::::::::::::::::r i::::i  c:::::::::::::::::c k:::::k  k:::::k   i::::it:::::::::::::::::t    
C:::::C              rr::::::rrrrr::::::ri::::i c:::::::cccccc:::::c k:::::k k:::::k    i::::itttttt:::::::tttttt    
C:::::C               r:::::r     r:::::ri::::i c::::::c     ccccccc k::::::k:::::k     i::::i      t:::::t          
C:::::C               r:::::r     rrrrrrri::::i c:::::c              k:::::::::::k      i::::i      t:::::t          
C:::::C               r:::::r            i::::i c:::::c              k:::::::::::k      i::::i      t:::::t          
 C:::::C       CCCCCC r:::::r            i::::i c::::::c     ccccccc k::::::k:::::k     i::::i      t:::::t    tttttt
  C:::::CCCCCCCC::::C r:::::r           i::::::ic:::::::cccccc:::::ck::::::k k:::::k   i::::::i     t::::::tttt:::::t
   CC:::::::::::::::C r:::::r           i::::::i c:::::::::::::::::ck::::::k  k:::::k  i::::::i     tt::::::::::::::t
     CCC::::::::::::C r:::::r           i::::::i  cc:::::::::::::::ck::::::k   k:::::k i::::::i       tt:::::::::::tt
        CCCCCCCCCCCCC rrrrrrr           iiiiiiii    cccccccccccccccckkkkkkkk    kkkkkkkiiiiiiii         ttttttttttt