import itertools
import math
import fractions
import functools
import copy

a = int(input())
b = int(input())
c = int(input())
d = int(input())
e = int(input())
original = [a,b,c,d,e]

sum = 0
minimum = 10
index = 0
for i in range(len(original)):
    if original[i] % 10 != 0:
        sum += original[i]//10 * 10 + 10
        if original[i]%10 < minimum:
            index = i
            minimum = original[i]%10
    else:
        sum += original[i]

print(sum-(original[index]//10 * 10 + 10)+original[index])