How many movies have Feliks Yasyukevich and Leonid Gaidai collaborated on?

They have worked on 6 movies together! Their first movie together was Sovershenno seryozno (1961) while their highest rated movie together was The Diamond Arm (1969). They have not worked together since There's Good Weather in Deribasovskaya, Or It's Raining Again in Brighton Beach (1993). They are most known for their comedy films together.