a-a a-b a-z aaa aab aaj aao aas aaz ab- aba abb abj abo abs abz aja ajb ajj ajo ajs aoa aob aoj aoo aos as- asa asb asj aso ass asz az- aza azb azo azs azz baa bab baj bao bas baz bba bbb bbo bbs bja bjj bjs boa bob boj boo bos boz bsa bsb bsj bso bss bza bzo bzs bzz j-z jaa jab jaj jao jas jaz jba jbj jbo jbs jbz jja jjb jjj jjs joa job joj joo jos jsa jsb jsj jso jss oaa oab oaj oao oas ob- oba obb obj obo obs oja ojb ojo ojs oo- ooa oob ooo oos os- osa osb osj oso oss oza ozo ozs ozz saa sab saj sao sas saz sba sbb sbj sbo sbs sja sjb sjj sjs soa sob soj soo sos soz ss- ssa ssb ssj sso sss ssz sza zaa zab zaj zao zas zaz zbb zbs zo- zoa zob zoo zos zsa zsz zzs zzz