#include <bits/stdc++.h>

using namespace std;
using ll = long long;

int main()
{
    ll t, ts; // numar elemente in vector
    ll s = 0; // suma elmentelor vectorului
    ll a;     // element vector
    vector<ll> z1;
    cin >> t;
    ts = t;
    while (t-- > 0)
    {
        cin >> a;
        z1.push_back(a);
    }
    for (int i = 0; i < ts; i++)
    {
        s += z1.at(i);
    }
    s = s / ts;
    cout << s << endl;
    return 0;
}