#include <iomanip>
#include <iostream>

using namespace std;

int main() {
  int n;
  cin >> n;

  if (n % 2) cout << 1 << " " << (n + 1)/2 << endl;
  else cout << 2 << " " << n / 2 << endl;

  while (true) {
    int t;
    cin >> t;

    if (t == 0) break;
    int k, x;
    cin >> k >> x;

    cout << k << " " << n + 2 - x - k << endl;
  }

  return 0;
}