#include <iostream>
#include<algorithm>
using namespace std;

int main()
{

	int a, b,c,d,e;
	cin >> a >> b>>c>>d>>e;
	int x=max((10-a)%10, min((10-b)%10, min((10-c)%10, min((10-d)%10, (10-e)%10))));
	while (a % 10 != 0)a++;
	while (b % 10 != 0)b++;
	while (c % 10 != 0)c++;
	while (d % 10 != 0)d++;
	while (e % 10 != 0)e++;
	cout <<a+b+c+d+e-x-10<<endl;
