a = [int(input()) for x in range(5)]
sum = 0
b = []
for i in range(5):
    if a[i]%10 == 0:
        sum += a[i]
    else:
        c = a[i] + (10 -a[i]%10)
        sum += c
        b.append(a[i]%10)
if b is not None:
    b.sort()
    sum -= 10 - b[0]
print(sum)