import java.util.Scanner;

public class prog {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int n = 200;
        int currentYLeft = 0;
        int currentYRight = n - 1;
        int currentX = 0;
        while (true) {
            if (currentYRight < currentYLeft) {
                currentX++;
                currentYLeft = 0;
                currentYRight = n - 1;
                continue;
            }
            int currentY = (currentYRight + currentYLeft) / 2;
            System.out.println(currentX + " " + currentY);
            String line = scanner.nextLine();
            int alt = Integer.parseInt(line);
            if (alt == 0) {
                break;
            } else if (alt < 0) {
                currentYLeft = currentY + 1;
            } else {
                currentYRight = currentY - 1;
            }
        }
        scanner.close();
    }
}