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

int main() {
  string N, S;
  getline(cin, N), getline(cin, S);
  if ((int)S.find(" ") == -1) {
    long A = atol(S.c_str()), B, C;
    cin >> B >> C;
    vector<long> V = {A + B, B + C, C + A};
    sort(V.rbegin(), V.rend());
    cout << V.at(1) << "\n";
  } else cout << "assert" << "\n";
}