nhc nhd nhe nhh nhi nhk nhn nhr nhu nia nib nic nid nie nih nii nik nin nir niu nka nkc nke nki nkk nkn nkr nku nna nnb nnc nne nnh nni nnk nnn nnu nra nrb nrc nrd nre nri nrk nrn nrr nru nua nub nuc nud nue nuh nui nuk nun nur nuu ra- raa rab rac rad rae rah rai rak ran rar rau rba rbb rbc rbd rbe rbh rbi rbk rbn rbr rbu rca rcb rcc rcd rce rch rci rcn rcr rcu rda rdb rdc rdd rde rdh rdi rdn rdr rdu re- rea reb rec red ree reh rei rek ren rer reu rh- rha rhb rhc rhd rhe rhh rhi rhn rhr rhu ria rib ric rid rie rih rii rik rin rir rkb rkc rke rkk rku rna rnb rnc rnd rnh rni rnn rnr rnu rra rrb rrc rrd rrh rri rrk rrn rrr rru rua rub ruc rud rue ruh rui ruk run rur ruu ua- uaa uab uac uad uae uah uai uak uan uar uau uba ubb ubc ube ubh ubi ubk ubn ubr ubu uca ucb ucc ucd uce uch uci uck ucn ucr ucu uda udb udc udd ude udi udk udn udr udu uea ueb uec ued uee ueh uei uen uer uha uhb uhc uhd uhe uhh uhi uhr uhu uia uib uic uid uie uii uin uir uiu uka ukb ukc uke uki ukk ukn ukr uku un- una unb unc und une unh uni unk unn unr unu ur- ura urb urc urd ure uri urk urn urr uru uua uuc uue uun uur uuu