[r,s] = optim([1,5,25,30,100,70,2,1,100,250,1,1000,2])

r =

       38120


s =

    "((((((((1*2)*3)*4)*5)*6)*7)*(8*(9*10)))*(11*12))"


[r,s] = optim([1000,1,500,12,1,700,2500,3,2,5,14,10])

r =

     1773740


s =

    "(1*((((((2*3)*4)*(((5*6)*7)*8))*9)*10)*11))"