codeup 2001

pastaList = list()
juiceList = list()

P_COUNT = 3
J_COUNT = 2

for _ in range(P_COUNT):
    pastaList.append(int(input()))

for _ in range(J_COUNT):
    juiceList.append(int(input()))

pastaList.sort()

juiceList.sort()

p_min = pastaList[0]
j_min = juiceList[0]


def getPrice(pasta, juice):
    summary = pasta + juice
    summary *= 1.1
    return summary


print('%.1f' % (getPrice(p_min, j_min)))