l = [int(input()) for _ in range(5)]
ans = 0
m = []
for i in range(5):
    if l[i] % 10 != 0:
        m.append(l[i] % 10)
m.sort()
for i in l:
    if i % 10 != 0:
        ans += ((i // 10) + 1) * 10
    else:
        ans += i
print(ans - 10 + m[0])