bbbb bbdd bbin bdii bdin bibb bibi bidi biin bin- bind bini binn binz bipp bizz bnib bnin bnpp bzip bzzz dbpd dddd dibb dibp didi diii din- dini dinn dipn dipp dizi dizz dpin dpni dzbb dzbn dzip ibid idid idin iiii inbd ind- indi inid inni inp- inpi inpp ipdi ipid ipin n-ii nbpp nddb ndnp ndpd nibi nidd nidi niip nind nini nndb nnnn nnpi npin nppd nzpi nzpp pdpn pibb pibi piip pind pini pinn pinp pipi pipp pnin pnpp ppib ppid pppd pppn pppp zidi ziip zinn zipp zizi zizz zzzz