list = [int(input()) for i in range(5)]
t = 0
cnt_l = []
for i in range(5):
    cnt = 0
    while list[i] % 10 != 0:
        list[i] += 1
        cnt += 1
    t += list[i]
    if cnt != 0:
        cnt_l.append(cnt)
if not cnt:
    cnt.append(0)
print(t - max(cnt_l))
