function res = recursiveProduct(int1,int2)
if int1==0 | int2==0
    res=0
elseif int1==1
    res=int2
elseif int2==1
    res=int1
elseif int1==-1
    res=-int2
else
    res=recursiveProd(int1,int2)
end
end


function res=recursiveProd(int1,int2)
if int2 == 0
    res = 0;
else
    res = int1 + recursiveProduct(int1, int2 - 1);

end