-al -ol a-a a-b a-c aaa aab aac aal aao aap aar ab- aba abb abc abl abo abp abr ac- aca acb acc acl aco acp acr al- ala alb alc all alo alp alr aoa aob aoc aol aoo aop aor ap- apa apb apc apl apo app apr ar- ara arb arc arl aro arp arr b-p baa bab bac bal bao bap bar bba bbb bbc bbl bbo bbp bbr bca bcb bcc bcl bco bcp bcr bla blb blc bll blo blp blr boa bob boc bol boo bop bor bpa bpb bpc bpl bpo bpp bpr bra brb brl bro brp brr c-- caa cab cac cal cao cap car cba cbb cbc cbl cbo cbp cbr cca ccb ccc ccl cco ccp ccr cl- cla clb clc cll clo clp clr co- coa cob coc col coo cop cor cpa cpb cpc cpl cpo cpp cpr cra crb crc crl cro crp crr l-p la- laa lab lac lal lao lap lar lba lbb lbc lbl lbo lbp lbr lca lcb lcc lcl lco lcp lcr lla llb llc lll llo llp llr loa lob loc lol loo lop lor lpa lpb lpc lpl lpo lpp lpr lra lrb lrc lro lrp lrr oaa oab oac oal oao oap oar ob- oba obb obc obl obo obp obr oc- oca ocb occ ocl oco ocp ocr ola olb olc oll olo olp oo- ooa oob ooc ool ooo oop oor op- opa opb opc opl opo opp opr or- ora orb orc orl oro orp orr p-p paa pab pac pal pao pap par pba pbb pbc pbl pbo pbp pbr pca pcb pcc pcl pco pcp pcr pla plb plc pll plo plp plr poa pob poc pol poo pop por ppa ppb ppc ppl ppo ppp ppr pra prb prc prl pro prp prr ra- raa rab rac ral rao rap rar rba rbb rbc rbl rbo rbp rbr rca rcb rcc rcl rco rcp rcr rla rlc rll rlo rlp rlr roa rob roc rol roo rop ror rpa rpb rpc rpl rpo rpp rpr rra rrb rrc rrl rrp rrr

aaaa aaab aaac aaal aaap aaar aaba aabb aabc aabl aabp aaca aacb aacc aacl aaco aacp aacr aala aalc aall aalo aaoo aapa aapc aapl aapo aara aarc aaro aarp abaa abab abac abal abap abar abb- abba abbb abbo abbr abca abcb abcc abcl abcp abcr abla ablo aboa abob abol aboo abor abpa abpc abpp abpr abra abrc abro acaa acab acac acap acar acba acbl acca accc acco accp acla aclc aclr acoa acol acop acor acpa acpr acr- acra acrc acro acrr al-p alaa alac alal alao alap alar alb- alba albc albo alca alcc alco all- alla alll allo allr aloa aloc alol aloo alop alor alpa alpl alpo alro aoba aoca aola aopo aora aorb apac apal apao apap apar apba apbr apca apcb apcc apco apcr apl- apla aplp apo- apoc apoo apop apor appa appc appl appr apra aprc apro arab arac aral arap arar arba arc- arca arco arla arlo aroa arob aroo aror arpa arpl arr- arra arrc arro arrr baaa baal baar baba babb babo babr bac- baca bacc baco bala balc ball balo baol bapa bapc bapp bar- bara barb barc baro barr bbbb bblb bbpr bbrc bcaa bcap bcar bcbc bcbp bcca bccc bccl bcor bcpl bcpp bcra blaa blab blac blob bloc bloo blop blrc boab boac boal boar boba bobb bobo boca boco bola boll bolo boob booc bool boop boor bopa bopp bor- bora boro borr bpcp bprc brab brac brao brca brcb brlp broa brob broc brol broo bror brrr c-bo caaa caab caac caal caap caba cabo cac- caca cacc caco cacr cala calc call calo calp caol caor capa capb capc capo capp cara carb carc carl caro carp carr cbac cbal cbar cbbc cbca cbcc cbcl cbcp cbcr cblb cblc cbol cbpc cbpp cbrl ccaa ccab ccac ccap ccar ccba ccbc ccca cccb cccc cccl cccp ccla cclc ccob ccoc ccpa ccpl ccpp ccpr ccra ccrc ccrl ccrp clab clap clar clob cloo clop clor clpb clpp clra clro coal coba cobb cobo coca coco cocp col- cola colb coll colo colp coob cool coop copa copo copp copr cor- cora corb corc corl coro corp corr cpaa cpac cpap cpbc cpca cplc cppa crab crac crap crar crbc crca crcc crcr crob croc crol croo crop cror crpc laaa laac laal laap laar laba labo labr laca lacc lacl laco lacp lala lall lalo lapa lapb lapc lapp lara larb larc larp larr lbar lbcc lblr lcac lcbc lcca lccc lcor lcpa lcpc lcpl lcra lcrl llao llcc lllc llll lloa lloc lloo loac loap loar lob- loba lobb lobo loca locc loco lola loll lolo loob looc lool loop loor lopa lopp lora loro lpac lpla lppl lprp lrac lral lrba lroc lrrc lrrr oall oara obal obba obbo obla obol obor obra obro ocab ocac ocal ocap ocbc occa occc oclc ocpa ocpp ocra ocrl ocro ocrr olac olar olba olbo olca olcc olla ollo olor olpc ooaa ooba oocr oola oolo oooo oora opal opap opar opca opla opo- opor oppa oppo opra orab orac oral orao orar orba orbb orbo orca orco orla orlo oro- oror orpc orra orro paal paap paar paba paca paco pala pall palo palp paoc papa papb papp papr par- para parc parl paro parp parr pbac pbar pbcc pboc pbpa pcaa pcap pcba pcbc pcca pccc pccl pcll pclo pcoa pcpb pcpp pcra pcrc pcrl plaa plab plac plap plar plbr plcc plob ploc ploo plop plpa plpp plra poar poba pobo poca poco pola poll polo pool poop poor pop- popa popc popo popp pora porb porc poro porr ppac ppal ppap ppar ppcc pplo ppoa pppa pppo pppp pprc prao prar prbc prca prcc prcp prlr pro- proa prob proc prol proo prop raab raba