-al a-a a-b a-c aaa aab aac aad aal aam aau ab- aba abb abc abd abl abm abu ac- aca acb acc acd acl acm acu ad- ada adb adc add adl adm adu al- ala alb alc ald all alm alu ama amb amc amd aml amm amu au- aua aub auc aud aul aum b-u baa bab bac bad bal bam bau bba bbb bbc bbd bbl bbm bbu bca bcb bcc bcd bcl bcm bcu bda bdb bdc bdd bdl bdm bdu bla blb blc bld bll blm blu bma bmb bmc bmd bml bmm bmu bua bub buc bud bul bum buu c-- caa cab cac cad cal cam cau cba cbb cbc cbd cbl cbm cbu cca ccb ccc ccd ccl ccm ccu cda cdb cdc cdd cdl cdm cdu cl- cla clb clc cld cll clm clu cma cmb cmc cmd cml cmm cmu cua cub cuc cud cul cum cuu daa dab dac dad dal dam dau dba dbb dbc dbd dbl dbm dbu dca dcb dcc dcd dcl dcm dcu dda ddb ddc ddd ddl ddm ddu dl- dla dlb dlc dld dll dlm dlu dma dmb dmc dmd dml dmm dmu dua dub duc dud dul dum la- laa lab lac lad lal lam lau lba lbb lbc lbd lbl lbm lbu lca lcb lcc lcd lcl lcm lcu lda ldb ldc ldd ldl ldm ldu lla llb llc lld lll llm llu lma lmb lmc lmd lml lmm lmu lua lub luc lud lul lum luu maa mab mac mad mal mam mau mba mbb mbc mbd mbl mbm mbu mc- mca mcb mcc mcd mcl mcm mcu mda mdb mdc mdd mdl mdm mdu mla mlb mlc mld mll mlm mlu mma mmb mmc mmd mml mmm mmu mua mub muc mud mul mum muu ua- uaa uab uac uad ual uam uau uba ubb ubc ubl ubu uca ucb ucc ucd ucl ucm ucu uda udb udc udd udl udm udu ula ulb ulc uld ull ulm ulu um- uma umb umc umd uml umm umu uua uuc uum uuu