-al a-a a-b a-c aaa aab aac aad aae aal aap ab- aba abb abc abd abe abl abp ac- aca acb acc acd ace acl acp ad- ada adb adc add ade adl adp aea aeb aec aed aee ael aep al- ala alb alc ald ale all alp ap- apa apb apc apd ape apl app b-p baa bab bac bad bae bal bap bba bbb bbc bbd bbe bbl bbp bca bcb bcc bcd bce bcl bcp bda bdb bdc bdd bde bdl bdp be- bea beb bec bed bee bel bep bla blb blc bld ble bll blp bpa bpb bpc bpd bpe bpl bpp c-- caa cab cac cad cae cal cap cba cbb cbc cbd cbe cbl cbp cca ccb ccc ccd cce ccl ccp cda cdb cdc cdd cde cdl cdp ce- cea ceb cec ced cee cel cep cl- cla clb clc cld cle cll clp cpa cpb cpc cpd cpe cpl cpp daa dab dac dad dae dal dap dba dbb dbc dbd dbe dbl dbp dca dcb dcc dcd dce dcl dcp dda ddb ddc ddd dde ddl ddp de- dea deb dec ded dee del dep dl- dla dlb dlc dld dle dll dlp dpa dpb dpc dpd dpe dpl dpp eaa eab eac ead eae eal eap eba ebb ebc ebd ebe ebl ebp ec- eca ecb ecc ecd ece ecl ed- eda edb edc edd ede edl edp eea eeb eec eed eee eel eep ela elb elc eld ele ell elp ep- epa epb epc epd epe epl epp l-p la- laa lab lac lad lae lal lap lba lbb lbc lbd lbe lbl lbp lca lcb lcc lcd lce lcl lcp lda ldb ldc ldd lde ldl ldp lea leb lec led lee lel lep lla llb llc lld lle lll llp lpa lpb lpc lpd lpe lpl lpp p-p paa pab pac pad pae pal pap pba pbb pbc pbd pbe pbl pbp pca pcb pcc pcd pce pcl pcp pda pdb pdc pdd pde pdl pdp pea peb pec ped pee pel pep pla plb plc pld ple pll plp ppa ppb ppc ppd ppe ppl ppp