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

def res(x):
    res_x = 0 if x % 10 == 0 else 10 - x % 10
    return res_x

def gauss(x):
    return 10 * (x // 10 + 1)

ds = [a, b, c, d, e]
ds_sort = sorted(ds, key=lambda x: res(x))
ans = sum([gauss(e) for e in ds_sort[:-1]]) + ds_sort[-1]

print(ans)