-al -ic a-a a-b a-c a-i aaa aab aac aaf aai aak aal aap aas ab- aba abb abc abf abi abk abl abp abs ac- aca acb acc acf aci ack acl acp acs af- afa afb afc aff afi afk afl afp afs ai- aia aib aic aif aii aik ail aip ais aka akb akc aki akk akl akp aks al- ala alb alc alf ali alk all alp als ap- apa apb apc apf api apk apl app aps as- asa asb asc asf asi ask asl asp ass b-p baa bab bac baf bai bak bal bap bas bba bbb bbc bbf bbi bbk bbl bbp bbs bca bcb bcc bcf bci bck bcl bcp bcs bfa bfb bfc bff bfi bfl bfp bfs bi- bia bib bic bif bii bik bil bip bis bka bkb bkc bkf bkk bkl bkp bks bla blb blc blf bli blk bll blp bls bpa bpb bpc bpf bpi bpl bpp bps bsa bsb bsc bsf bsi bsk bsl bsp bss c-- caa cab cac caf cai cak cal cap cas cba cbb cbc cbf cbi cbk cbl cbp cbs cca ccb ccc ccf cci cck ccl ccp ccs cfa cfb cfc cff cfi cfk cfl cfp cfs ci- cia cib cic cif cii cik cil cip cis cka ckb ckc cki cks cl- cla clb clc clf cli clk cll clp cls cpa cpb cpc cpf cpi cpk cpl cpp cps csa csb csc csf csi csk csl csp css faa fab fac faf fai fak fal fap fas fba fbb fbc fbf fbi fbk fbl fbp fbs fca fcb fcc fcf fci fck fcl fcp fcs ffa ffc fff ffi ffk ffl ffp ffs fia fib fic fif fii fik fil fip fis fka fkb fkc fkf fki fkk fkl fkp fla flb flc flf fli fll flp fls fpa fpb fpc fpi fpk fpl fpp fps fsa fsb fsc fsf fsi fsk fsl fsp fss i-f ia- iaa iab iac iaf iai ial iap ias iba ibb ibc ibf ibi ibk ibl ibp ibs ica icb icc icf ici ick icl icp ics ifa ifb ifc iff ifi ifl ifp ifs iia iib iic iif iii iil iip iis ika ikb ikc ikf iki ikk ikl iks il- ila ilb ilc ilf ili ilk ill ilp ils ipa ipb ipc ipf ipi ipl ipp ips is- isa isb isc isf isi isk isl isp iss ka- kaa kab kac kaf kai kak kal kap kas kba kbb kbc kbf kbi kbk kbl kbp kbs kca kcb kcc kci kck kcl kcp kcs kfa kfc kff kfi kfs kia kib kic kif kii kik kil kip kis kkb kkc kki kkk kkl kkp kks kl- kla klb klc klf kli kls kpa kpc kpf kpi kpk kpl kpp kps ksa ksb ksc ksf ksi ksk ksl ksp kss l-p la- laa lab lac laf lai lak lal lap las lba lbb lbc lbf lbi lbk lbl lbp lbs lca lcb lcc lcf lci lck lcl lcp lcs lfa lfb lfc lff lfi lfk lfl lfp lfs lia lib lic lif lii lik lil lip lis lka lkb lkl lkp lks lla llb llc llf lli llk lll llp lls lpa lpb lpc lpf lpi lpk lpl lpp lps lsa lsb lsc lsf lsi lsk lsl lsp lss p-p paa pab pac paf pai pak pal pap pas pba pbb pbc pbf pbi pbk pbl pbp pbs pca pcb pcc pcf pci pck pcl pcp pcs pfa pfb pfc pff pfi pfk pfl pfp pfs pia pib pic pif pii pik pil pip pis pka pkb pkc pkf pki pkl pkp pks pla plb plc plf pli plk pll plp pls ppa ppb ppc ppf ppi ppk ppl ppp pps ps- psa psb psc psf psi psk psl psp pss saa sab sac saf sai sak sal sap sas sba sbb sbc sbf sbi sbk sbl sbp sbs sca scb scc scf sci sck scl scp scs sfa sfb sfc sff sfi sfk sfl sfp sfs sia sib sic sif sii sik sil sip sis sk- ska skb skc skf ski skk skl skp sks sla slb slc slf sli slk sll slp sls spa spb spc spf spi spk spl spp sps ss- ssa ssb ssc ssf ssi ssk ssl ssp sss