#include <iostream>
#include <fstream>
#include <vector>
#include <cstdlib>

using namespace std;

// Return a random number for this problem.
int nextInt() {
  return rand() % 20001 - 10000;
}

int main() {
  // Generate sequences that could be different every time.
  srand( time( 0 ) );

  // Make sure the program works on the sample input.
  cout << "7 2" << endl;
  cout << "3 10" << endl;

  // Generate some special, hard-coded test cases.
  cout << "1 0" << endl;
  cout << "0 1" << endl;
  cout << "-1 0" << endl;
  cout << "0 -1" << endl;
  cout << "-1 1" << endl;
  cout << "1 -1" << endl;

  // Generate a bunch of random test cases.
  for ( int i = 0; i < 200; i++ ) {
    // Make a couple of random numbers.
    int a, b;
    do {
      a = nextInt();
      b = nextInt();
      // Keep guessing until we get different numbers.
    } while ( a == b );

    cout << a << " " << b << endl;
  }

  int c = nextInt();
  cout << c << " " << c << endl;
}