<prompt> Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu: Kupfuura: Muna 1946, hurumende yeViet Minh yakazova hurumende yeNorth Vietnam yakaunza mari yayo, đồng, kutsiva piastre yeFrench Indochinese pachiyero. Kuongororwazve kwemari kwakaitika kaviri, muna 1951 na1959; wokutanga waiva nomwero we100:1, wechipiri waiva nomwero we1,000:1. Mubvunzo: Kuongororwa kwemari kwakaitika mumakore api?  <response>: 1951 na1959 