import java.util.Scanner;

public class prog {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int n = 200;
        int[][] land = new int[n][n];
        int currentXLeft = 0;
        int currentXRight = n-1;
        int currentY = 0;
        while (true) {
            int currentX = (currentXRight + currentXLeft) / 2;
            if(currentXRight == currentXLeft) {
                currentY++;
                currentXLeft = 0;
                currentXRight = n-1;
                continue;
            }
            System.out.println(currentX + " " + currentY);
            String line = scanner.nextLine();
            
            int alt;
            try {
                alt = Integer.parseInt(line);
                land[currentX][currentY] = alt;
                if(alt == 0) {
                    break;
                } else if(alt < 0) {
                    currentXLeft = currentX;
                } else {
                    currentXRight = currentX;
                }
            } catch (NumberFormatException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
        scanner.close();
    }
}