a-a a-b aaa aab aaj aam aao aar ab- aba abb abj abm abo abr aja ajb ajj ajm ajo ajr ama amb amm amo amr aoa aob aoj aom aoo aor ar- ara arb arj arm aro arr baa bab baj bam bao bar bba bbb bbm bbo bbr bja bjj bjm bjr bma bmb bmj bmm bmo bmr boa bob boj bom boo bor bra brb brj brm bro brr jaa jab jaj jam jao jar jba jbj jbm jbo jbr jja jjb jjj jjr jma jmb jmj jmm jmo jmr joa job joj jom joo jor jra jrb jrm jro jrr m-o m-r maa mab maj mam mao mar mba mbb mbj mbm mbo mbr mjb mjj mjm mjr mma mmb mmj mmm mmo mmr moa mob mom moo mor mra mrb mrj mrm mro mrr oaa oab oaj oam oao oar ob- oba obb obj obm obo obr oja ojb ojm ojo om- oma omb omj omm omo omr oo- ooa oob oom ooo oor or- ora orb orm oro orr ra- raa rab raj ram rao rar rba rbb rbm rbo rbr rja rjm rjr rma rmb rmm rmo rmr roa rob roj rom roo ror rra rrb rrm rrr