kkkk kkmk kkmr kkms kkrk kkrr kkrs kksm kksr kkss kksu kkus kkuu kmkk kmks kmmk kmmm kmmr kmms kmrr kmrs kmsr kmss kmsu kmur kmus krkk krkr krks krku krmr krms krrk krrm krrr krrs krsk krsr krss krsu kruk krum krur kskk kskr ksks ksku ksmm ksmr ksms ksmu ksrm ksrr ksrs kssm kssr ksss kssu ksum ksuu kukk kuks kuku kumm kumr kumu kurk kurm kurr kurs kuru kusu kuuk kuur kuuu mkks mksm mmmm mmms mmsu mmus mrkr mruk msmm msms msmu mssm mssr msus mumm mums mumu murk murr murs muru musk muss musu rkss rrkm rrrr rrum rsum rukk ruku rumm rums rurs ruru rusk russ rusu skss skum skur smrk smss smur smus ssrm ssrs sssm ssss suks suku sum- sums sumu sur- surr surs suru sus- susk suss susu suum suus ukum ukur umms umsu umus urss ursu uruk urum urur urus us-k usmm usms ussr usss ussu usus uuuu