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

l = [a, b, c, d, e]
k = []
for i in l:
    k.append(i - ((i - 1) //10) * 10)
m = 10 - min(k)
for i in l:
    i = (i // 10 + 1) * 10
print(sum(l) - m)