a-a a-b a-c aaa aab aac aaj aam aao aau ab- aba abb abc abj abm abo abu ac- aca acb acc acj acm aco acu aja ajb ajc ajj ajm ajo aju ama amb amc amm amo amu aoa aob aoc aoj aom aoo aou au- aua aub auc auj aum auo b-u baa bab bac baj bam bao bau bba bbb bbc bbm bbo bbu bca bcb bcc bcj bcm bco bcu bja bjc bjj bjm bju bma bmb bmc bmj bmm bmo bmu boa bob boc boj bom boo bou bua bub buc buj bum buo buu c-- c-j caa cab cac caj cam cao cau cba cbb cbc cbj cbm cbo cbu cca ccb ccc ccj ccm cco ccu cja cjb cjc cma cmb cmc cmj cmm cmo cmu co- coa cob coc coj com coo cou cua cub cuc cum cuo cuu jaa jab jac jaj jam jao jau jba jbc jbj jbm jbo jbu jca jcb jcc jcm jco jcu jja jjb jjc jjj jju jma jmb jmc jmj jmm jmo jmu joa job joc joj jom joo jou jub jum juo m-o maa mab mac maj mam mao mau mba mbb mbc mbj mbm mbo mbu mc- mca mcb mcc mcm mco mcu mjb mjc mjj mjm mma mmb mmc mmj mmm mmo mmu moa mob moc mom moo mou mua mub muc muj mum muu oaa oab oac oaj oam oao oau ob- oba obb obc obj obm obo obu oc- oca ocb occ ocj ocm oco ocu oja ojb ojc ojm ojo oju om- oma omb omc omj omm omo omu oo- ooa oob ooc oom ooo ou- oua ouc oum ouo ua- uaa uab uac uaj uam uao uau uba ubb ubc ubo ubu uca ucb ucc ucj ucm uco ucu ujc ujo um- uma umb umc umm umo umu uoa uob uoc uoj uom uoo uua uuc uum uuu