-er a-a a-c aaa aac aae aah aaj aao aar ac- aca acc ace ach acj aco acr aea aec aee aeh aej aeo aer aha ahc ahe ahh ahj aho ahr aja ajc aje ajh ajj ajo ajr aoa aoc aoe aoh aoj aoo aor ar- ara arc are arh arj aro arr c-- c-j caa cac cae cah caj cao car cca ccc cce cch ccj cco ccr ce- cea cec cee ceh cej ceo cer ch- cha chc che chh cho chr cja cjc cjr co- coa coc coe coh coj coo cor cra crc cre crh crj cro crr eaa eac eae eah eaj eao ear ec- eca ecc ece ech ecj eco ecr eea eec eee eeo eer eha ehc ehe ehh eho ehr eja ejc ejo eo- eoa eoc eoe eoh eoo eor era erc ere erh ero err haa hac hae hah haj hao har hca hcc hce hch hcj hco hcr he- hea hec hee heh hej heo her hha hhc hhe hhh hhj hho hhr hja hjo hjr hoa hoc hoe hoh hoo hor hr- hra hrc hre hrh hrj hro hrr jaa jac jae jah jaj jao jar jca jcc jce jch jco jcr jea jec jee jeh jej jeo jer jha jhc jhe jhj jho jhr jja jjc jjj jjr joa joc joe joh joj joo jor jra jrc jro jrr oaa oac oae oah oaj oao oar oc- oca occ och ocj oco ocr oea oec oee oeh oeo oer oha ohc ohe ohh oho ohr oja ojc oje ojo oo- ooa ooc ooh ooo oor or- ora orc ore orh oro orr ra- raa rac rae rah raj rao rar rca rcc rce rch rcj rco rcr re- rea rec ree reh reo rer rh- rha rhc rhe rhh rho rhr rja rjc rjr roa roc roe roh roj roo ror rra rrc rrh rrr