#include <algorithm>
#include <chrono>
#include <cmath>
#include <cstring>
#include <iomanip>
#include <iostream>
#include <numeric>
#include <vector>
using namespace std;

int main() {
  int n, t, k, x;
  cin >> n;
  if (n == 1) {
    cout << "1 1" << endl;
    cin >> t;
    return 0;
  }
  if (n == 2) {
    cout << "2 1" << endl;
    cin >> t;
    return 0;
  }
  if (n & 1) {
    cout << n / 2 + 1 << " 1" << endl;
  } else {
    cout << n / 2 << " 2" << endl;
  }

  while (true) {
    cin >> t;
    if (t == 0) break;
    cin >> k >> x;
    if (k > n / 2) {
      cout << k - (n / 2 + 1) << " " << k << endl;
    } else {
      cout << k + (n / 2 + 1) << " " << k << endl;
    }
  }
  return 0;
}