a-a a-c aaa aac aae aag aak aam aan ac- aca acc ace acg ack acm acn aea aec aee aeg aek aem aen ag- aga agc age agg agk agm agn aka akc ake akg akk akm akn ama amc ame amg amk amm amn an- ana anc ane ang ank anm ann c-- caa cac cae cag cak cam can cca ccc cce ccg cck ccm ccn ce- cea cec cee ceg cek cem cen cga cgc cge cgg cgm cgn cka ckc ckm cma cmc cme cmg cmk cmm cmn cn- cna cnc cne cng cnm cnn eaa eac eae eag eak eam ean ec- eca ecc ece ecg eck ecm ecn eea eec eee eeg eek eem een ega egc ege egg egm egn eka ekc eke ekg em- ema emc eme emg emk emm emn en- ena enc ene eng enk enm enn gaa gac gae gag gak gam gan gca gcc gce gcg gck gcm gcn ge- gea gec gee geg gek gem gen gga ggc ggg ggm ggn gka gkm gkn gma gmc gme gmg gmm gmn gna gnc gne gnm gnn ka- kaa kac kae kag kak kam kan kca kcc kce kcg kck kcm kcn ke- kea kec kee keg kek kem ken kga kgc kgm kkc kke kkk kkm kkn kma kmc kme kmg kmk kmm kn- kna knc kne kng knk knm knn maa mac mae mag mak mam man mc- mca mcc mce mcg mck mcm mcn mea mec mee meg mek mem men mga mgc mge mgk mgm mgn mka mkc mke mkg mkk mkm mkn mma mmc mme mmg mmk mmm mmn mna mnc mne mng mnk mnm mnn naa nac nae nag nak nam nan nca ncc nce ncg nck ncm ncn ne- nea nec nee neg nek nem nen nga ngc nge ngg ngk ngm ngn nka nkc nke nkk nkm nkn nma nmc nme nmg nmk nmm nmn nna nnc nne nng nnk nnm nnn