DU$18$ Dee mmemme ma n$$gide na$-$ar$$ onye $$r$$ ka $$ tinye n$$mba integer ruo mgbe $$ na$-$abanye na efu efu. Tupu mmemme ap$$ ap$$ na$-$egosip$$ta $$n$$g$$ d$$ mma yana ole $$n$$g$$ abanyela.