#include <iostream>
#include <vector>
#include <set>
using namespace std;

class Solution {
public:
    int maxResult(vector<int>& nums, int k);
};

int Solution::maxResult(vector<int>& nums, int k)
{
  return 0;
}

int main(int argc, char **argv)
{
  int k;
  vector <int> nums;
  Solution s;

  while (cin >> k) nums.push_back(k);
  nums.pop_back();
  cout << s.maxResult(nums, k) << endl;
  return 0;
}