-al -ol a-a a-b a-c aaa aab aac aaf aaj aal aao ab- aba abb abc abf abj abl abo ac- aca acb acc acf acj acl aco af- afa afb afc aff afj afl afo aja ajb ajc ajf ajj ajl ajo al- ala alb alc alf alj all alo aoa aob aoc aof aoj aol aoo baa bab bac baf baj bal bao bba bbb bbc bbf bbl bbo bca bcb bcc bcf bcj bcl bco bfa bfb bfc bff bfj bfl bfo bja bjc bjf bjj bla blb blc blf blj bll blo boa bob boc bof boj bol boo c-- c-j caa cab cac caf caj cal cao cba cbb cbc cbf cbj cbl cbo cca ccb ccc ccf ccj ccl cco cfa cfb cfc cff cfl cfo cja cjb cjc cjf cl- cla clb clc clf clj cll clo co- coa cob coc cof coj col coo faa fab fac faf faj fal fao fba fbb fbc fbf fbl fbo fca fcb fcc fcf fcj fcl fco ffa ffc fff ffl ffo fja fjb fjc fla flb flc flf fll flo foa fob foc fof fol foo jaa jab jac jaf jaj jal jao jba jbc jbf jbj jbl jbo jca jcb jcc jcf jcl jco jfa jfb jfc jff jfj jfl jfo jja jjb jjc jjf jjj jjl jla jlb jlc jlf jll jlo joa job joc jof joj jol joo la- laa lab lac laf laj lal lao lba lbb lbc lbf lbj lbl lbo lca lcb lcc lcf lcj lcl lco lfa lfb lfc lff lfl lfo ljf ljj lla llb llc llf llj lll llo loa lob loc lof loj lol loo oaa oab oac oaf oaj oal oao ob- oba obb obc obf obj obl obo oc- oca ocb occ ocf ocj ocl oco of- ofa ofb ofc off ofl ofo oja ojb ojc ojo ola olb olc olf oll olo oo- ooa oob ooc oof ool ooo