10        20        30        40        50  
d2ywwa2  ( 100 )    deiegtLkCtnpnCitnkekvrgkFkiesk-nplkIrCyycekfLn--ev
d4fywb2  ( 101 )    eridnvlvCpnsnCishaepvssSFavrkrandiALkCkycekefshnvV
                     bbb                   bbbbbb     bbbb            

d2ywwa2  ( 147 )    if 
d4fywb2  ( 151 )    lan