l = list(map(int,input().split()))
c = list(map(int,input().split()))

l2 = [2*(l[0]+l[1]), 2*(l[1]+l[2]),2*(l[2]+l[0])]
l2.sort()

c.sort(reverse = True)
ans = 0
for i in range(3):
    ans += l2[i]*c[i]
print(ans)