using System;

public class Program

{

    public static void Main()

    {

        int row = -1;

        int col = -1;

        bool keepAsking = true;

        do {

            try {           

                string s = Console.ReadLine();

                string[] parts = s.Split(' ');

                row = int.Parse(parts[0]);

                col = int.Parse(parts[1]);

                keepAsking = false;

            } catch(Exception ex) {

                Console.WriteLine("försök igen {0}", ex);

            }

        } while(keepAsking);

        Console.WriteLine("du angav {0} {1}", row, col);

    }

}