-al -ol a-a a-b a-c aaa aab aac aak aal aao aap ab- aba abb abc abk abl abo abp ac- aca acb acc ack acl aco acp aka akb akc akk akl ako akp al- ala alb alc alk all alo alp aoa aob aoc aok aol aoo aop ap- apa apb apc apk apl apo app b-p baa bab bac bak bal bao bap bba bbb bbc bbk bbl bbo bbp bca bcb bcc bck bcl bco bcp bka bkb bkc bkk bkl bko bkp bla blb blc blk bll blo blp boa bob boc bok bol boo bop bpa bpb bpc bpl bpo bpp c-- caa cab cac cak cal cao cap cba cbb cbc cbk cbl cbo cbp cca ccb ccc cck ccl cco ccp cka ckb ckc cko cl- cla clb clc clk cll clo clp co- coa cob coc cok col coo cop cpa cpb cpc cpk cpl cpo cpp ka- kaa kab kac kak kal kao kap kba kbb kbc kbk kbl kbo kbp kca kcb kcc kck kcl kcp kkb kkc kkk kkl kkp kl- kla klb klc klo koa kob koc kok kol koo kop kpa kpc kpk kpl kpo kpp l-p la- laa lab lac lak lal lao lap lba lbb lbc lbk lbl lbo lbp lca lcb lcc lck lcl lco lcp lka lkb lkl lkp lla llb llc llk lll llo llp loa lob loc lok lol loo lop lpa lpb lpc lpk lpl lpo lpp oaa oab oac oak oal oao oap ob- oba obb obc obk obl obo obp oc- oca ocb occ ock ocl oco ocp oka okb okc okk okl oko okp ola olb olc olk oll olo olp oo- ooa oob ooc ook ool ooo oop op- opa opb opc opk opl opo opp p-p paa pab pac pak pal pao pap pba pbb pbc pbk pbl pbo pbp pca pcb pcc pck pcl pco pcp pka pkb pkc pkl pko pkp pla plb plc plk pll plo plp poa pob poc pok pol poo pop ppa ppb ppc ppk ppl ppo ppp

a-ak a-ok aaaa aaab aaac aaal aaap aaba aabb aabc aabl aabp aaca aacb aacc aack aacl aaco aacp aaka aala aalc aall aalo aaoo aapa aapc aapl aapo abaa abab abac abak abal abap abb- abba abbb abbo abca abcb abcc abcl abcp abla ablo aboa abob abok abol aboo abpa abpc abpp acaa acab acac acap acba acbl acca accc acco accp acla aclc acoa acol acop acpa akaa akal akao akap akca akka akko aklo akok akpo al-p alaa alac alak alal alao alap alb- alba albc albo alca alcc alco alk- alka alkb alko all- alla alll allo aloa aloc alok alol aloo alop alpa alpl alpo aoba aoca aokp aola aopo apac apak apal apao apap apba apca apcb apcc apco apl- apla aplp apo- apoc apoo apop appa appc appl baaa baak baal baba babb babo bac- baca bacc back baco bak- baka bakl bako bala balc balk ball balo baol bapa bapc bapp bbbb bblb bcaa bcap bcbc bcbp bcca bccc bccl bcpl bcpp blaa blab blac blak blkb blob bloc blok bloo blop boab boac boak boal boba bobb bobo boca bock boco boka boko bola bolk boll bolo boob booc book bool boop bopa bopp bpcp c-bo caaa caab caac caal caap caba cabo cac- caca cacc cack caco caka cala calc calk call calo calp caol capa capb capc capo capp cbac cbal cbbc cbca cbcc cbcl cbcp cbka cbkl cbko cblb cblc cbol cbpc cbpp ccaa ccab ccac ccap ccba ccbc ccca cccb cccc cccl cccp ccla cclc ccob ccoc ccpa ccpl ccpp ckac ckbc ckck ckcl ckco ckoa ckob ckoc ckoo ckpc clab clap clob clok cloo clop clpb clpp coak coal coba cobb cobo coca cock coco cocp cok- coka coko col- cola colb colk coll colo colp coob cook cool coop copa copo copp cpaa cpac cpap cpbc cpca cplc cppa k-lo kaaa kaab kaak kaal kaap kaba kabb kabc kabo kacb kacc kacl kaco kacp kaka kakc kakk kako kala kalb kalc kalk kall kalo kalp kaoa kaoc kaok kaol kap- kapa kapc kapl kapo kapp kbaa kbab kbac kbak kbal kbap kbba kbbb kbbc kbbk kbbl kbbo kbca kbcb kbck kbcl kbco kbkb kbkk kbkl kbko kbla kblb kbll kblo kblp kboa kbob kboc kbok kboo kbpa kbpc kbpk kbpo kcaa kcab kcac kcal kcap kcba kcbc kcbk kcbl kcca kccb kccc kcck kccl kckc kckk kckl kcko kcla kclc kclk kcll kcob kcol kcpa kcpc kcpl kcpo kkaa kkac kkal kkap kkba kkbb kkbl kkbo kkcb kkck kkcl kkco kkkk kklb kklc kkll kklo kkoa kkob kkol kkoo kkpc kkpk kkpl klaa klab klac klak klal klap klbb klbc klbl klca klcb klcc klck klcl klka klkc klkk klkl klko klla kllb kllc kllk kllp kloa klob kloc klok klol kloo klop klpc koab koac koak koal koap koba kobb kobc kobk kobo koca kocb kock kocp koka kokb kokc kokk koko kokp kola kolb kolc kolk koll kolo koob kooc kook kool kooo koop kopa kopb kopp kpac kpak kpal kpao kpba kpbb kpbl kpcc kpcl kpkk kpkl kpla kplc kplk kplo kpoa kpob kpoc kpok kpol kpoo kpop kppc kppk kppl kppo kppp laaa laac laak laal laap laba labo laca lacc lack lacl laco lacp laka lala lall lalo lapa lapb lapc lapp lbcc lcac lcbc lcca lccc lcpa lcpc lcpl lkab lkal llao llcc lllc llll lloa lloc lloo loac loap lob- loba lobb lobo loca locc lock loco loka lokk loko lola loll lolo loob looc look lool loop lopa lopp lpac lpla lppl oall obak obal obba obbo obkb obla obok obol ocab ocac ocak ocal ocap ocbc occa occc oclc ocpa ocpp okak okap okka okko okla oklo okok okol okpo olac olba olbo olca olcc olka olla ollo olpc ooaa ooak ooba oola oolo oooo opal opap opca opla opo- oppa oppo paak paal paap