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);