suppose there is a market with two competing firms,to inverse market demand is p(y)=160-2y

Firm costs are-

Firm1: c1(y1)=10y1

Firm2:c2(y2)=10y2

what is the quantity produced by firm 1 if it is a quantity leader in a Stackelberg setting(sequential quantity settings)?
what is the quantity produced by firm 1 if it is a quantity leader in a Cournot setting where both firms choose quantity simultaneously?