obu oc- oca ocb occ ocf ocg oci ocm oco oct ocu oea oeb oec oee oef oeg oei oem oeo oet of- ofa ofb ofc ofe off ofg ofi ofm ofo oft ofu oga ogc oge ogf ogg ogi ogo ogt oia oib oic oie oif oii oim oio oit oiu om- oma omb omc ome omf omg omi omm omo omt omu oo- ooa oob ooc oof oog ooi oom ooo oot ot- ota otb otc ote otf otg oti otm oto ott otu ou- oua ouc oue ouf oui oum ouo out taa tab tac tae taf tag tai tam tao tat tau tba tbb tbc tbe tbf tbg tbi tbm tbo tbt tbu tca tcb tcc tce tcf tcg tci tcm tco tct tcu te- tea teb tec tee tef teg tei tem teo tet teu tfa tfb tfc tfe tff tfg tfi tfm tfo tft tfu tga tgb tgc tge tgf tgg tgi tgm tgo tgt tgu tia tib tic tie tif tig tii tim tio tit tiu tma tmb tmc tme tmf tmg tmi tmm tmo tmt tmu to- toa tob toc toe tof tog toi tom too tot tou tta ttb ttc tte ttf ttg tti ttm tto ttt ttu tua tub tuc tue tuf tug tui tum tuo tut tuu ua- uaa uab uac uae uaf uag uai uam uao uat uau uba ubb ubc ube ubf ubg ubi ubo ubt ubu uca ucb ucc uce ucf ucg uci ucm uco uct ucu uea ueb uec uee uef ueg uei uem uet ufa ufc ufe uff ufg ufi ufm ufo uft ufu uga ugb ugc uge ugf ugg ugi ugm ugo ugt ugu uia uib uic uie uif uig uii uim uio uit uiu um- uma umb umc ume umf umg umi umm umo umt umu uoa uob uoc uoe uog uom uoo uot uta utb utc ute utf uti utm uto utt utu uua uuc uue uug uum uut uuu