import java.io.File;
import java.io.FileWriter;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.Scanner;


public class CountFrequency {
	public static void main(String args[]) throws Exception
	{
	    Scanner in = new Scanner(new File(args[0]));
	    //in.useDelimiter(" ");
	    int[] counts = new int[8];
	    Arrays.fill(counts, 0);
	    while(in.hasNext())
	    {
		    String[] line = in.nextLine().split("\\s+");
		    int fre = Integer.parseInt(line[0]);
		    int itr = Integer.parseInt(line[1]);
		    counts[itr]=fre;			
	    }	    
	    in.close();
	    PrintWriter writer = new PrintWriter(new FileWriter(new File(args[0])));
	    for(int i=0; i < counts.length; i++){writer.println(counts[i]+" "+i);}
	    writer.close();
	}

}