#include <cassert>
#include <iostream>
#include <cstdlib>
#include <set>
using namespace std;
int main() {
    int n; cin >> n >> ws;
    string s; getline(cin, s);
    if (s.find(' ') != string::npos) cout << "\"assert\"\n";
    else {
        long long a = atol(s.c_str()), b, c; cin >> b >> c;
        set<long long> s({a+b, b+c, c+a});
        cout << *next(s.rbegin()) << endl;
    }
}