-al a-a a-b a-c aaa aab aac aad aal aap aas ab- aba abb abc abd abl abp abs ac- aca acb acc acd acl acp acs ad- ada adb adc add adl adp ads al- ala alb alc ald all alp als ap- apa apb apc apd apl app aps as- asa asb asc asd asl asp ass b-p baa bab bac bad bal bap bas bba bbb bbc bbd bbl bbp bbs bca bcb bcc bcd bcl bcp bcs bda bdb bdc bdd bdl bdp bds bla blb blc bld bll blp bls bpa bpb bpc bpd bpl bpp bps bsa bsb bsc bsd bsl bsp bss c-- caa cab cac cad cal cap cas cba cbb cbc cbd cbl cbp cbs cca ccb ccc ccd ccl ccp ccs cda cdb cdc cdd cdl cdp cds cl- cla clb clc cld cll clp cls cpa cpb cpc cpd cpl cpp cps csa csb csc csd csl csp css daa dab dac dad dal dap das dba dbb dbc dbd dbl dbp dbs dca dcb dcc dcd dcl dcp dcs dda ddb ddc ddd ddl ddp dds dl- dla dlb dlc dld dll dlp dls dpa dpb dpc dpd dpl dpp dps dsa dsb dsc dsd dsl dsp dss l-p la- laa lab lac lad lal lap las lba lbb lbc lbd lbl lbp lbs lca lcb lcc lcd lcl lcp lcs lda ldb ldc ldd ldl ldp lds lla llb llc lld lll llp lls lpa lpb lpc lpd lpl lpp lps lsa lsb lsc lsd lsl lsp lss p-p paa pab pac pad pal pap pas pba pbb pbc pbd pbl pbp pbs pca pcb pcc pcd pcl pcp pcs pda pdb pdc pdd pdl pdp pds pla plb plc pld pll plp pls ppa ppb ppc ppd ppl ppp pps ps- psa psb psc psd psl psp pss saa sab sac sad sal sap sas sba sbb sbc sbd sbl sbp sbs sca scb scc scd scl scp scs sda sdb sdc sdd sdl sdp sds sla slb slc sld sll slp sls spa spb spc spd spl spp sps ss- ssa ssb ssc ssd ssl ssp sss

aaaa aaab aaac aaad aaal aaap aaas aaba aabb aabc aabd aabl aabp aaca aacb aacc aacd aacl aacp aacs aada aadc aads aala aalc aald aall aals aapa aapc aapl aaps aasa aasc aasd aass abaa abab abac abad abal abap abas abb- abba abbb abbs abca abcb abcc abcd abcl abcp abcs abda abla abls abpa abpc abpd abpp abps abs- absa absd absl absp abss acaa acab acac acad acap acas acba acbl acca accc accd accp accs acda acdb acdc acdp acds acla aclc acls acpa acpd acps acsa acsc acsd acsl acss adaa adab adac adad adal adap adas adba adbc adcc adcs adda addc addd addl adds adls adp- adps adsa adsl adss al-p alaa alac alad alal alap alas alb- alba albc albs alca alcc alcs ald- alda aldl alds all- alla alll alls alpa alpl alps alsa alsc apac apal apap apas apba apbs apca apcb apcc apcd apcs apda apdd apds apl- apla aplp apls appa appc appd appl apps apsa apsl apss asaa asab asac asad asal asap asas asba asc- asca ascb ascc ascl ascp asda asdl asds asla aspa aspc aspd aspl asps assa assc assd assl assp asss baaa baad baal baas baba babb babs bac- baca bacc bacs bada badb badd bads bala balc bald ball bals bapa bapc bapp baps basa basc bass bbad bbas bbbb bbbs bbdd bblb bbls bcaa bcap bcas bcbc bcbp bcbs bcca bccc bccl bccs bcda bcds bcpl bcpp bcps bcsa bcsc bcsl bcss bdbc bddc bdls bdpc bdsd blaa blab blac blad blas bldc blls blsp blss bpcp bpda bpsa bsaa bsac bsap bsas bsbd bscp bscs bsdl bslc bspp bssc bssd c-cd caaa caab caac caal caap caas caba cabs cac- caca cacc cada cadc cadd cads cala calc cald call calp cals capa capb capc capd capp caps casa casb casc casd casl casp cass cbac cbal cbbc cbbs cbca cbcc cbcl cbcp cbcs cbdb cbdc cbds cblb cblc cbpc cbpp cbsa cbsc ccaa ccab ccac ccad ccap ccas ccba ccbc ccca cccb cccc cccl cccp cccs ccdc ccdp ccds ccla cclc ccls ccpa ccpl ccpp ccps ccsa ccsd ccsl ccsp ccss cdaa cdac cdad cdba cdcs cdda cddb cddl cdls cdps cdss clab clad clap clas clcd cldc clpb clpp clsa clsc cpaa cpac cpad cpap cpas cpbc cpca cpcs cpdl cplc cpls cppa cppd cpps cpsa cpsc cpsl csaa csab csac csas cscb cscc cscd cscl cscs csda csdb csdp csla csld cslp cspa cspb cspc cspd csps cssa cssd daab daad daal daap daas daba dabb dabp dabs daca dacs dada dads dala dall dals dapa dapp daps dasa dasb dasc dasd dasl dass dbas dbcc dbcp dbcs dblp dbls dbpc dbpd dbsa dbss dcas dcbc dcca dccb dccc dccl dccp dccs dcdb dcds dcls dcpl dcps dcsc dcss dddd ddlc ddps ddss dlab dlbd dlcs dpaa dpac dpbc dpcp dpll dpls dppa dppc dpsd dsac dsap dsba dsbc dscc dscp dscs dsda dsdp dsls dsps dssa dssc dssp laaa laac laad laal laap laas laba labs laca lacc lacl lacp lacs lada ladd ladp lads lala lald lall lapa lapb lapc lapd lapp laps lasa lasd lass lbcc lbds lbsc lcac lcad lcbc lcca lccc lccs lcdd lcdp lcds lcls lcpa lcpc lcpd lcpl lcps lcsc lcsd lcsp lddp ldls ldpc llbs llcc llcs lldb lldc lldp llds lllc llll llps lpac lpda lpla lppl lpsc lpss lsap lscb lscs lsds lsla lspl lssa lssp paal paap paas paba paca pacd pacs pada padd pads pala pall palp pals papa papb papp paps pasa pasc pasd pasl pasp pass pbac pbcc pbpa pbsa pbsp pcaa pcad pcap pcas pcba pcbc pcbs pcca pccc pccl pccs pcll pcpb pcpp pcps pcsa pdac pdas pdbs pdca pdcp pdlc pdpa pdsa pdsd pdss plaa