#include <bits/stdc++.h>
#include "testlib.h"

using namespace std;
using ll = long long;

int main(int argc, char** argv) {
  registerValidation(argc, argv);
  ll n = inf.readLong(1ll, 200000ll);
  inf.readEoln();
  auto v = inf.readInts(n, 0, (1 << 30) - 1);
  inf.readEoln();
  inf.readEof();
  return 0;
}