-ic a-a a-b a-c a-i aaa aab aac aai aao aap aas ab- aba abb abc abi abo abp abs ac- aca acb acc aci aco acp acs ai- aia aib aic aii aio aip ais aoa aob aoc aoi aoo aop aos ap- apa apb apc api apo app aps as- asa asb asc asi aso asp ass b-p baa bab bac bai bao bap bas bba bbb bbc bbi bbo bbp bbs bca bcb bcc bci bco bcp bcs bi- bia bib bic bii bio bip bis boa bob boc boi boo bop bos bpa bpb bpc bpi bpo bpp bps bsa bsb bsc bsi bso bsp bss c-- caa cab cac cai cao cap cas cba cbb cbc cbi cbo cbp cbs cca ccb ccc cci cco ccp ccs ci- cia cib cic cii cio cip cis co- coa cob coc coi coo cop cos cpa cpb cpc cpi cpo cpp cps csa csb csc csi cso csp css ia- iaa iab iac iai iao iap ias iba ibb ibc ibi ibo ibp ibs ica icb icc ici ico icp ics iia iib iic iii iio iip iis io- ioa iob ioc ioi ioo iop ios ipa ipb ipc ipi ipo ipp ips is- isa isb isc isi iso isp iss o-i oaa oab oac oai oao oap oas ob- oba obb obc obi obo obp obs oc- oca ocb occ oci oco ocp ocs oia oib oic oii oio oip ois oo- ooa oob ooc ooi ooo oop oos op- opa opb opc opi opo opp ops os- osa osb osc osi oso osp oss p-p paa pab pac pai pao pap pas pba pbb pbc pbi pbo pbp pbs pca pcb pcc pci pco pcp pcs pia pib pic pii pio pip pis poa pob poc poi poo pop pos ppa ppb ppc ppi ppo ppp pps ps- psa psb psc psi pso psp pss saa sab sac sai sao sap sas sba sbb sbc sbi sbo sbp sbs sca scb scc sci sco scp scs sia sib sic sii sio sip sis soa sob soc soi soo sop sos spa spb spc spi spo spp sps ss- ssa ssb ssc ssi sso ssp sss

a-ii aaaa aaab aaac aaai aaap aaas aaba aabb aabc aabi aabp aaca aacb aacc aaci aaco aacp aacs aaib aaic aaii aais aaoo aapa aapc aapi aapo aaps aasa aasc aasi aass abaa abab abac abai abap abas abb- abba abbb abbi abbo abbs abca abcb abcc abci abcp abcs abia abib abic abis aboa abob aboo abos abpa abpc abpi abpp abps abs- absa absi absp abss acaa acab acac acai acap acas acba acca accc acci acco accp accs aci- acia acic acip acis acoa acop acos acpa acpi acps acsa acsc acsi acss aiai aias aiba aibo aica aicc aicp aics aiia aiib aiic aioc aioi aipa aipi aips aisa aisb aisi aiso aoba aoca aocs aopo aosp aoss apac apai apao apap apas apba apbs apca apcb apcc apco apcs api- apia apic apio apip apis apo- apoc apoo apop apos appa appc apps apsa apsi apso apss asaa asab asac asai asao asap asas asba asbo asc- asca ascb ascc asci asco ascp asia asic asii asio asip asis asob asoc asoi asop asos aspa aspc aspi aspo asps assa assc assi asso assp asss ba-i baaa baas baba babb babi babo babs bac- baca bacc baci baco bacs baia baib baic baio bais baos bapa bapc bapi bapp baps basa basc basi baso bass bbas bbbb bbbs bbci bcaa bcap bcas bcbc bcbp bcbs bcca bccc bcci bccs bcia bcis bcos bcpp bcps bcsa bcsc bcss biao biap bias biba bibb bibi bibo bibs bica bicc bici bico bics biis bio- bioc bioi bios bipa bipp bips bis- bisa bisc biso bisp biss boab boac boai boas boba bobb bobi bobo bobs boca boco bocs boi- boii bois boob booc boop boos bopa bopp bops bosa bosc bosi boso boss bpai bpcp bpsa bsaa bsac bsap bsas bsci bscp bscs bsic bsos bspp bssc c-bo caaa caab caac caap caas caba cabi cabo cabs cac- caca cacc caci caco caia caib caic caio caip cais caoi caos capa capb capc capi capo capp caps casa casb casc casi caso casp cass cbac cbbc cbbs cbca cbcc cbcp cbcs cbia cbpc cbpp cbsa cbsc cbsi ccaa ccab ccac ccai ccap ccas ccba ccbc ccca cccb cccc ccci cccp cccs ccic ccii ccip ccis ccob ccoc ccpa ccpp ccps ccsa ccsi ccsp ccss ciaa ciao cias ciba cibc cibi cibo cica cicc cici cico cics ciia ciii ciis ciob cios cipa cipo cipp cips cis- cisa cisc cisp ciss coai coas coba cobb cobi cobo cobs coca coco cocp coia coip cois coob coop coos copa copi copo copp cops cosa cosc cosi coso cosp coss cpaa cpac cpap cpas cpbc cpca cpcs cpia cpic cpio cpos cppa cpps cpsa cpsc cpso csaa csab csac csao csas cscb cscc csci csco cscs csia csib csio csis csob csos cspa cspb cspc cspi csps cssa iaaa iaac iaai iaap iaas iaba iaca iacc iacp iacs iaia iais iapa iapp iaps iasa iasc iasi iaso iasp ibac ibas ibca ibcs ibia ibis ibos ibsa ibss icaa icab icac icai icao icap icas icbc icbp icbs icca iccb iccc icci icco iccp iccs icis icoc icos icpa icpc icpo icps icsa icsb icsc icsi icsp icss iiac iias iica iiii iiio iiis iioi iioo iiop iios iipa iisc iisi iisp ioba iobi ioci iocp ioii ioio iooi iooo ioos iops ioso ipac ipas ipba ipca ipcc ipcs ipop ipos ippa ippc ippo ipsa ipsc ipsi ipso ipsp ipss is-a isac isai isao isas isba isca iscc isci isco iscp iscs isia isic isis iso- isoc isop isos ispa ispc isps issa issc issi isso issp isss oaic oais oapi oaps oasc oasi oass obai obas obba obbo obia obis oboi obos obss ocab ocac ocap ocas ocbc occa