-al -ic a-a a-b a-c a-i aaa aab aac aad aai aak aal aar ab- aba abb abc abd abi abk abl abr ac- aca acb acc acd aci ack acl acr ad- ada adb adc add adi adk adl adr ai- aia aib aic aid aii aik ail air aka akb akc akd aki akk akl akr al- ala alb alc ald ali alk all alr ar- ara arb arc ard ari ark arl arr baa bab bac bad bai bak bal bar bba bbb bbc bbd bbi bbk bbl bbr bca bcb bcc bcd bci bck bcl bcr bda bdb bdc bdd bdi bdk bdl bdr bi- bia bib bic bid bii bik bil bir bka bkb bkc bkk bkl bkr bla blb blc bld bli blk bll blr bra brb brd bri brk brl brr c-- caa cab cac cad cai cak cal car cba cbb cbc cbd cbi cbk cbl cbr cca ccb ccc ccd cci cck ccl ccr cda cdb cdc cdd cdi cdk cdl cdr ci- cia cib cic cid cii cik cil cir cka ckb ckc ckd cki cl- cla clb clc cld cli clk cll clr cra crb crc crd cri crk crl crr daa dab dac dad dai dak dal dar dba dbb dbc dbd dbi dbk dbl dbr dca dcb dcc dcd dci dck dcl dcr dda ddb ddc ddd ddi ddk ddl ddr di- dia dib dic did dii dik dil dir dka dkb dkc dki dkk dkl dkr dl- dla dlb dlc dld dli dlk dll dlr dra drb drc drd dri drk drl drr i-d ia- iaa iab iac iad iai ial iar iba ibb ibc ibd ibi ibk ibl ibr ica icb icc icd ici ick icl icr ida idb idc idd idi idk idl idr iia iib iic iid iii iil iir ika ikb ikc iki ikk ikl ikr il- ila ilb ilc ild ili ilk ill ilr ir- ira irb irc ird iri irk irl irr ka- kaa kab kac kad kai kak kal kar kba kbb kbc kbd kbi kbk kbl kbr kca kcb kcc kcd kci kck kcl kcr kda kdb kdc kdk kdl kdr kia kib kic kid kii kik kil kir kkb kkc kki kkk kkl kkr kl- kla klb klc kld kli klr kra krc krd kri krk krl krr la- laa lab lac lad lai lak lal lar lba lbb lbc lbd lbi lbk lbl lbr lca lcb lcc lcd lci lck lcl lcr lda ldb ldc ldd ldi ldk ldl ldr lia lib lic lid lii lik lil lir lka lkb lkl lkr lla llb llc lld lli llk lll llr lra lrb lrc lrd lri lrk lrr ra- raa rab rac rad rai rak ral rar rba rbb rbc rbd rbi rbk rbl rbr rca rcb rcc rcd rci rcl rcr rda rdb rdc rdd rdi rdl rdr ria rib ric rid rii rik ril rir rkb rkc rkk rla rlc rld rli rll rlr rra rrb rrc rrd rri rrk rrl rrr