tcca tccc tch- tcha tchh tcho tchr tcnn tcon tctc thaa thal than thao thar that thca thch thnt thon thoo thor thot thra thro thtr tlac tlco tlon tnca tncc tnla toal toan toat toca toch toco toho tol- tola toll tolo tolt tona tonh tonn tono tooa tooh tool toon toor toot tora torc torn toro torr tort tota totc toth toto totr tott traa trac tral tran trao trat trca trcc trcl trna trno troa troc tron troo trot trra trtc trtr ttcn tton tttt