-al -ol a-a a-b a-c aaa aab aac aal aao aap aas ab- aba abb abc abl abo abp abs ac- aca acb acc acl aco acp acs al- ala alb alc all alo alp als aoa aob aoc aol aoo aop aos ap- apa apb apc apl apo app aps as- asa asb asc asl aso asp ass b-p baa bab bac bal bao bap bas bba bbb bbc bbl bbo bbp bbs bca bcb bcc bcl bco bcp bcs bla blb blc bll blo blp bls boa bob boc bol boo bop bos bpa bpb bpc bpl bpo bpp bps bsa bsb bsc bsl bso bsp bss c-- caa cab cac cal cao cap cas cba cbb cbc cbl cbo cbp cbs cca ccb ccc ccl cco ccp ccs cl- cla clb clc cll clo clp cls co- coa cob coc col coo cop cos cpa cpb cpc cpl cpo cpp cps csa csb csc csl cso csp css l-p la- laa lab lac lal lao lap las lba lbb lbc lbl lbo lbp lbs lca lcb lcc lcl lco lcp lcs lla llb llc lll llo llp lls loa lob loc lol loo lop los lpa lpb lpc lpl lpo lpp lps lsa lsb lsc lsl lso lsp lss oaa oab oac oal oao oap oas ob- oba obb obc obl obo obp obs oc- oca ocb occ ocl oco ocp ocs ola olb olc oll olo olp ols oo- ooa oob ooc ool ooo oop oos op- opa opb opc opl opo opp ops os- osa osb osc osl oso osp oss p-p paa pab pac pal pao pap pas pba pbb pbc pbl pbo pbp pbs pca pcb pcc pcl pco pcp pcs pla plb plc pll plo plp pls poa pob poc pol poo pop pos ppa ppb ppc ppl ppo ppp pps ps- psa psb psc psl pso psp pss saa sab sac sal sao sap sas sba sbb sbc sbl sbo sbp sbs sca scb scc scl sco scp scs sla slb slc sll slo slp sls soa sob soc sol soo sop sos spa spb spc spl spo spp sps ss- ssa ssb ssc ssl sso ssp sss

aaaa aaab aaac aaal aaap aaas aaba aabb aabc aabl aabp aaca aacb aacc aacl aaco aacp aacs aala aalc aall aalo aals aaoo aapa aapc aapl aapo aaps aasa aasc aass abaa abab abac abal abap abas abb- abba abbb abbo abbs abca abcb abcc abcl abcp abcs abla ablo abls aboa abob abol aboo abos abpa abpc abpp abps abs- absa absl absp abss acaa acab acac acap acas acba acbl acca accc acco accp accs acla aclc acls acoa acol acop acos acpa acps acsa acsc acsl acss al-p alaa alac alal alao alap alas alb- alba albc albo albs alca alcc alco alcs all- alla alll allo alls aloa aloc alol aloo alop alos alpa alpl alpo alps alsa alsc also aoba aoca aocs aola aopo aosp aoss apac apal apao apap apas apba apbs apca apcb apcc apco apcs apl- apla aplp apls apo- apoc apoo apop apos appa appc appl apps apsa apsl apso apss asaa asab asac asal asao asap asas asba asbo asc- asca ascb ascc ascl asco ascp asla aslo asob asoc asop asos aspa aspc aspl aspo asps assa assc assl asso assp asss baaa baal baas baba babb babo babs bac- baca bacc baco bacs bala balc ball balo bals baol baos bapa bapc bapp baps basa basc baso bass bbas bbbb bbbs bblb bbls bcaa bcap bcas bcbc bcbp bcbs bcca bccc bccl bccs bcos bcpl bcpp bcps bcsa bcsc bcsl bcss blaa blab blac blas blls blob bloc bloo blop blsp blss boab boac boal boas boba bobb bobo bobs boca boco bocs bola boll bolo bols boob booc bool boop boos bopa bopp bops bosa bosc boso boss bpcp bpsa bsaa bsac bsap bsas bscp bscs bslc bsos bspp bssc c-bo caaa caab caac caal caap caas caba cabo cabs cac- caca cacc caco cala calc call calo calp cals caol caos capa capb capc capo capp caps casa casb casc casl caso casp cass cbac cbal cbbc cbbs cbca cbcc cbcl cbcp cbcs cblb cblc cbol cbpc cbpp cbsa cbsc ccaa ccab ccac ccap ccas ccba ccbc ccca cccb cccc cccl cccp cccs ccla cclc ccls ccob ccoc ccpa ccpl ccpp ccps ccsa ccsl ccsp ccss clab clap clas clob cloo clop clos clpb clpp clsa clsc coal coas coba cobb cobo cobs coca coco cocp col- cola colb coll colo colp cols coob cool coop coos copa copo copp cops cosa cosc cosl coso cosp coss cpaa cpac cpap cpas cpbc cpca cpcs cplc cpls cpos cppa cpps cpsa cpsc cpsl cpso csaa csab csac csao csas cscb cscc cscl csco cscs csla cslp csob csos cspa cspb cspc csps cssa laaa laac laal laap laas laba labo labs laca lacc lacl laco lacp lacs lala lall lalo laos lapa lapb lapc lapp laps lasa laso lass lbcc lbos lbsc lcac lcbc lcca lccc lccs lcls lcpa lcpc lcpl lcps lcsc lcsp llao llbs llcc llcs lllc llll lloa lloc lloo llps loac loap loas lob- loba lobb lobo lobs loca locc loco locs lola loll lolo lols loob looc lool loop loos lopa lopp lops losa losc loso losp loss lpac lpla lppl lpsc lpss lsap lscb lsco lscs lsla lspl lssa lsso lssp oall oaps oasc oasl oass obal obas obba obbo obla obls obol obos obss ocab ocac ocal ocap ocas ocbc occa occc oclc ocos ocpa ocpp ocsa olac olas olba olbo olca olcc olla ollo olos olpc ooaa ooba oola oolo oooo ooos oops oosa opal opap opca opla opls opo- opos oppa oppo opps opsa osap osas osba osbp osca oscc oscl osco osla oslo osoo osos ossa ossb osso paal paap paas paba paca paco pacs pala pall palo palp pals paoc paos papa papb papp paps pasa pasc pasl