a = int(input())
b = int(input())
c = int(input())
d = int(input())
e = int(input())

dish_list = [a, b, c, d, e]
min_val = 100
for i, x in enumerate(dish_list):
    if x%10 == 0:
        continue
    val = x % 10
    if val < min_val:
        min_val = val
        idx = i

ans = 0
for i, dish in enumerate(dish_list):
    if i == idx:
        continue

    wait_order =  10 - dish_list[i]%10 if dish_list[i]%10 != 0 else 0

    ans += dish_list[i] + wait_order

print(ans + dish_list[idx])