ti dgvrfgghtrjhtdjt

#include <bits/stdc++.h>
#define int long long
using namespace std;

int sum;

signed main (){
int n;
cin >> n;
for (int i = 0; i < n; i++){
int n;
cin >> n;
if (n % 5 == 0)
sum += n;
}
cout << sum;
return 0;
}