using System;
    using System.Linq;
    using System.Collections.Generic;
    using System.Text.RegularExpressions;
    using System.Text;
    using System.Net;

     
    public class Program
    {
        public void Proc() {
            Reader.IsDebug = false;
            try {
                int posX = GetX(0, 100000);
                int posY = GetY(0, 100000);
                GetPos(posX, posY);
            } catch(Exception e) {

            }
        }

        Dictionary<int, Dictionary<int, int>> dic = new Dictionary<int, Dictionary<int, int>>();

        private int GetY(int min, int max) {
            int idx1 = min + ((max-min)/3);
            int idx2 = min + ((max-min)*2/3);

            int minPos = GetPos(0,min);
            int idx1Pos = GetPos(0,idx1);
            int idx2Pos = GetPos(0,idx2);
            int maxPos = GetPos(0,max);


            int[] arr = new int[]{minPos, idx1Pos, idx2Pos, maxPos};
            if(max-min<=3) {
                if(arr.Min() == minPos) {
                    return min;
                } else if(arr.Min() == idx1Pos) {
                    return idx1;
                } else if(arr.Min() == idx2Pos) {
                    return idx2;
                } else {
                    return max;
                }
            }
            if(arr.Min() == minPos) {
                return GetX(min, idx1);
            } else if(arr.Min() == idx1Pos) {
                return GetX(min, idx2);
            } else if(arr.Min() == idx2Pos) {
                return GetX(idx1, maxPos);
            } else {
                return GetX(idx2, max);
            }
        }
        private int GetX(int min, int max) {
            if(max-min<=1) {
                int num1 = GetPos(min, 0);
                int num2 = GetPos(max, 0);
                if(num1<=num2) {
                    return min;
                } else {
                    return max;
                }
            }
            int idx1 = min + ((max-min)/3);
            int idx2 = min + ((max-min)*2/3);

            int minPos = GetPos(min, 0);
            int idx1Pos = GetPos(idx1, 0);
            int idx2Pos = GetPos(idx2, 0);
            int maxPos = GetPos(max, 0);

            int[] arr = new int[]{minPos, idx1Pos, idx2Pos, maxPos};
            if(max-min<=3) {
                if(arr.Min() == minPos) {
                    return min;
                } else if(arr.Min() == idx1Pos) {
                    return idx1;
                } else if(arr.Min() == idx2Pos) {
                    return idx2;
                } else {
                    return max;
                }
            }
            if(arr.Min() == minPos) {
                return GetX(min, idx1);
            } else if(arr.Min() == idx1Pos) {
                return GetX(min, idx2);
            } else if(arr.Min() == idx2Pos) {
                return GetX(idx1, maxPos);
            } else {
                return GetX(idx2, max);
            }
        }

        private int GetPos(int x, int y) {
            if(!dic.ContainsKey(x)) {
                dic.Add(x, new Dictionary<int, int>());
            }
            if(dic[x].ContainsKey(y)) {
                return dic[x][y];
            }
            Console.WriteLine(x + " " + y);
            int ans = int.Parse(Reader.ReadLine());
            if(ans == 0) {
                throw new Exception();
            }
            dic[x][y] = ans;
            return ans;
        }


        public class Reader {
            public static bool IsDebug = true;
            private static System.IO.StringReader SReader;
            private static string InitText = @"







19 57
9
5 16 48 144 432 1296 3888 11664 34992






";
            public static string ReadLine() {
                if(IsDebug) {
                    if(SReader == null) {
                        SReader = new System.IO.StringReader(InitText.Trim());
                    }
                    return SReader.ReadLine();
                } else {
                    return Console.ReadLine();
                }
            }
        }
        public static void Main(string[] args)
        {
            Program prg = new Program();
            prg.Proc();
        }
    }