-er a-a a-c aaa aac aae aaj aar aas ac- aca acc ace acj acr acs aea aec aee aej aer aes aja ajc aje ajj ajr ajs ar- ara arc are arj arr ars as- asa asc ase asj asr ass c-- c-j caa cac cae caj car cas cca ccc cce ccj ccr ccs ce- cea cec cee cej cer ces cja cjc cjr cjs cra crc cre crj crr crs csa csc cse csj csr css eaa eac eae eaj ear eas ec- eca ecc ece ecj ecr ecs eea eec eee eer ees eja ejc era erc ere err ers es- esa esc ese esr ess jaa jac jae jaj jar jas jca jcc jce jcr jcs jea jec jee jej jer jes jja jjc jjj jjr jjs jra jrc jrr jrs jsa jsc jse jsj jsr jss ra- raa rac rae raj rar ras rca rcc rce rcj rcr rcs re- rea rec ree rer res rja rjc rjr rra rrc rrr rrs rsa rsc rse rsj rsr rss saa sac sae saj sar sas sca scc sce scj scr scs se- sea sec see sej ser ses sja sjc sje sjj sjr sjs sr- sra src sre srj srr srs ss- ssa ssc sse ssj ssr sss