import sys
stdin = sys.stdin
 
ni = lambda: int(ns())
na = lambda: list(map(int, stdin.readline().split()))
nn = lambda: list(stdin.readline().split())
ns = lambda: stdin.readline().rstrip()

a = ni()
b = ni()
c = ni()
d = ni()
e = ni()

f = min(a%10,b%10,c%10,d%10,e%10)

ans = (a+9)//10+(b+9)//10+(c+9)//10+(d+9)//10+(e+9)//10

print(ans*10+f-10)