a-a a-b a-i aaa aab aai aam aao aap aar aax ab- aba abb abi abm abo abp abr abx ai- aia aib aii aim aio aip air aix ama amb ami amm amo amp amr amx aoa aob aoi aom aoo aop aor aox ap- apa apb api apm apo app apr apx ar- ara arb ari arm aro arp arr arx ax- axa axi axm axo axp axr axx b-p baa bab bai bam bao bap bar bax bba bbb bbi bbm bbo bbp bbr bbx bi- bia bib bii bim bio bip bir bix bma bmb bmi bmm bmo bmp bmr bmx boa bob boi bom boo bop bor box bpa bpb bpi bpm bpo bpp bpr bpx bra brb bri brm bro brp brr brx bxb bxi bxm bxo bxx ia- iaa iab iai iam iao iap iar iba ibb ibi ibm ibo ibp ibr ibx iia iib iii iim iio iip iir iix im- ima imb imi imm imo imp imx io- ioa iob ioi iom ioo iop ior ipa ipb ipi ipm ipo ipp ipr ipx ir- ira irb iri irm iro irp irr irx ixi m-o m-r maa mab mai mam mao map mar max mba mbb mbi mbm mbo mbp mbr mbx mi- mia mib mii mim mio mip mir mix mma mmb mmi mmm mmo mmp mmr mmx moa mob moi mom moo mop mor mox mpa mpb mpi mpm mpo mpp mpr mpx mra mrb mri mrm mro mrp mrr mrx mxa mxi mxp mxr o-i oaa oab oai oam oao oap oar oax ob- oba obb obi obm obo obp obr obx oia oib oii oim oio oip oir om- oma omb omi omm omo omp omr omx oo- ooa oob ooi oom ooo oop oor oox op- opa opb opi opm opo opp opr opx or- ora orb ori orm oro orp orr orx ox- oxa oxb oxi oxo oxx p-p paa pab pai pam pao pap par pax pba pbb pbi pbm pbo pbp pbr pbx pia pib pii pim pio pip pir pix pma pmb pmi pmm pmo pmp pmr pmx poa pob poi pom poo pop por pox ppa ppb ppi ppm ppo ppp ppr ppx pra prb pri prm pro prp prr prx pxm pxr ra- raa rab rai ram rao rap rar rax rba rbb rbi rbm rbo rbp rbr rbx ria rib rii rim rio rip rir rix rma rmb rmi rmm rmo rmp rmr rmx roa rob roi rom roo rop ror rox rpa rpb rpi rpm rpo rpp rpr rpx rra rrb rri rrm rrp rrr rxp rxr xaa xam xap xar xbr xbx xia xii xio xix xma xmi xmm xmo xmp xmr xmx xoa xoi xom xoo xop xor xox xpa xpb xpm xpo xpp xrx xxi xxo xxp xxx

a-ii aaaa aaab aaai aaam aaap aaar aaba aabb aabi aabm aabp aaib aaii aama aamb aami aamo aamp aamr aaoo aapa aapi aapm aapo aara aari aarm aaro aarp abaa abab abai abam abap abar abax abb- abba abbb abbi abbo abbr abia abib abim abir abma abmb aboa abob aboo abor abox abpa abpi abpm abpp abpr abra abri abro aiai aiba aibo aiia aiib aiir aimi aimm aimo aimp aioi aipa aipi aira airi airo airp airx aixa aixi aixm amaa amai amam amap amar amax amb- amba ambi ambo ambr ambx amia amib amii amip amir amix amm- amma ammi ammo amob amoi amoo amor ampa ampm ampo amra amri amro aoba aoma aopo aora aorb apai apam apao apap apar apax apba apbr api- apia apim apio apip apix apma apo- apom apoo apop apor apox appa appr appx apra apri apro arab arai aram arap arar arax arba arbi aria arib arii arim ario arip arma armi armm armo aroa arob aroi arom aroo aror arpa arpi arr- arra arri arro arrr axar axi- axia axim axo- axoa axxo ba-i ba-x baaa baam baar baba babb babi babm babo babr baia baib baio bair baix bama bamb bami bamm bamp bapa bapi bapp bar- bara barb bari barm baro barr barx baxi bbbb bbox bbpr biao biap biar biba bibb bibi bibo bima bimo bimx bio- bioi biox bipa bipm bipp bira birb biri biro birr birx bixa bixi bmaa bmir bmmi bmop boab boai boar boba bobb bobi bobo boi- boii boim boma bomb bomi bomp boob boom boop boor boox bopa bopp bor- bora bori borm boro borr boxa bpai brab brai bram brao brax bria brim brio brix broa brob brom broo bror brox brrm brrr iaaa iaai iaap iaba iabm iaia iaim iama iamb iami iamp iamx iapa iapm iapp iapx iara ibar ibbm ibia ibim ibma ibmp ibmx ibox ibra ibri ibro iiii iiio iioi iioo iiop iipa iipm iira imai imam imao imar imax imba imbi imir imix imma immi immo impa impi impr impx imra imri imro imrr ioba iobi ioii ioio ioma iomo iooi iooo iora iori ipam ipba ipix ipmi ipmp ipop ippa ippo ippr ipri irai iram irao irap irar irbm irbp iri- iria irio irip irix irma irmo irob irop irpa irra irri ixia ixxi ma-i maaa maai maam maap maar maba mabi mabo maia maib maii maim maio mair mama mami mamo mamp maoi maor mapa mapi mapo mapp mapr mar- mara mari marm maro marr marx maxi maxx mbam mbba mbia mbim mbio mbox miaa miab miai miam miao miii miio mim- mima mimi mimo mimp mio- mipi mipr mira miri miro mirr mixi mixx mmaa mmab mmai mmap mmar mmii mmix mmmm mmor mmpa mmpi mmpr mmrp mmxi mmxx moaa moab moai moam moap moar moba mobb mobi mobo moii moio moir moma momi momo mooa moob moop moor mopa mopp mora morb mori moro moxa moxi moxo mpaa mpai mpao mpio mpir mppp mpri mpro mprp mrap mrbb mrbm mria mrpa mxii mxim mxpx mxxi oama oamp oapi oara obai obba obbo obia obix oboi obor obox