myArray = list()
for n in range(5):
    myArray.append(int(input()))
Jouyo  = 9

for i,j in enumerate(myArray):
    if 0 < j % 10 <= Jouyo:
        Jouyo = j % 10
        jouyoi = i

times = 0
for i,j in enumerate(myArray):
    if i != jouyoi:
        if j % 10 != 0:
            times += ((j // 10) + 1) * 10
        else:
            times += j
    else:
        times += j
print(times)