a-a aaa aad aak aan aar ad- ada add adk adn adr aka akd akk akn akr an- ana and ank ann anr ar- ara ard ark arn arr daa dad dak dan dar dda ddd ddk ddn ddr dka dkk dkr dna dnd dnk dnn dnr dra drd drk drn drr ka- kaa kad kak kan kar kda kdk kdr kkk kkn kkr kn- kna knd knk knn knr kra krd krk krn krr naa nad nak nan nar nda ndd ndk ndn ndr nka nkk nkn nkr nna nnk nnn nra nrd nrk nrn nrr ra- raa rad rak ran rar rda rdd rdn rdr rkk rna rnd rnn rnr rra rrd rrk rrn rrr