n = [int(input()) for _ in range(5)]
minNum = 9
x = 0
for i in n:
    if i % 10 < minNum and i % 10 != 0:
        minNum = i % 10
        x = i
n.pop(n.index(x))
total = x
for j in n:
    total += ((j + 9) // 10) * 10
print(total)