l = [int(input()) for i in range(5)]
mod = [l[i] % 10 for i in range(5)]
print(mod)
time = 0
if max(mod) == 0:
    print(sum(l))
else:
    min = 0
    for i in range(5):
        if mod[i] != 0:
            time += l[i] + (10 - mod[i])
            if min < 10 - mod[i]:
                min = 10 - mod[i]
        else:
            time += l[i]
    print(time - min)