import math

A = int(input())
B = int(input())
C = int(input())
D = int(input())
E = int(input())

def roof(n):
    return math.ceil(n/10) * 10

def mod(n):
    return n % 10

low = map(mod, [A,B,C,D,E])
top = map(roof, [A,B,C,D,E])

low = [i for i in low if i != 0]

ans = sum(top) + min(low)
print(ans)
