#include <bits/stdc++.h>
using namespace std;
const long long maxn = 200010;
const long long MOD = 1e9 + 7;
const long long INF = 1e9;
const long long LINF = 1e18;
long long n, m, a[maxn], b[maxn];
map<long long, long long> M, N;
string s, ss;
set<long long> S;
long long l, r, h;
int32_t main() {
  ios_base::sync_with_stdio(false);
  cin.tie(0);
  cin >> n;
  for (long long i = 0; i < n; i++) cin >> a[i];
  sort(a, a + n);
  long long ans = 0;
  for (long long i = 0; i < n; i++)
    ans += ((a[i] % 10007) * (a[n - i - 1] % 10007)) % 10007, ans %= 10007;
  cout << ans;
}
