#include<cstdio>
#include<iostream>
#include<cmath>
#include<algorithm>
#include<cstring>
using namespace std;
int a,b,c,d,e;
int ta,tb,tc,td,te;
int mmax = 10;
int ans;
int main()
{
  cin>>a>>b>>c>>d>>e;
  ta = a/10 + (a%10 != 0?1:0);
  tb = b/10 + (b%10 != 0?1:0);
  tc = c/10 + (c%10 != 0?1:0);
  td = d/10 + (d%10 != 0?1:0);
  te = e/10 + (e%10 != 0?1:0);
  maxx = min(a%10,b%10);
  maxx = min(maxx,c%10);
  maxx = min(maxx,d%10);
  maxx = min(maxx,e%10);
  ans = ta*10+tb*10+tc*10+td*10+te*10-(10-maxx);
  cout<<ans<<endl;
  return 0;
}