from operator import itemgetter
from itertools import *
from bisect import *
from collections import *
from heapq import *
import sys

sys.setrecursionlimit(10**6)
int1 = lambda x: int(x)-1
p2D = lambda x: print(*x, sep="\n")
# def II(): return int(sys.stdin.buffer.readline())
def II(): return int(input())
def MI(): return map(int, sys.stdin.buffer.readline().split())
def LI(): return list(map(int, sys.stdin.buffer.readline().split()))
def LLI(rows_number): return [LI() for _ in range(rows_number)]
def MI1(): return map(int1, sys.stdin.buffer.readline().split())
def LI1(): return list(map(int1, sys.stdin.buffer.readline().split()))
def LLI1(rows_number): return [LI1() for _ in range(rows_number)]
def BI(): return sys.stdin.buffer.readline().rstrip()
def SI(): return sys.stdin.buffer.readline().rstrip().decode()
def inval(ni, nj, h, w):
    if ni < 0 or ni >= h or nj < 0 or nj >= w: return True
    return False
dij = [(0, 1), (-1, 0), (0, -1), (1, 0)]
inf = 10**16

def ask(x,y):
    print(x,y)
    d=II()
    if d==0:exit()
    return d

# def ask(x, y):
#     a, b = 2, 5
#     print(x, y)
#     d = abs(x-a)+abs(y-b)
#     print(d)
#     if d == 0: exit()
#     return d

l, r = -1, 100000
while l+1 < r:
    m = (l+r)//2
    if ask(m, 0) > ask(m+1, 0): l = m
    else: r = m
x = r

l, r = -1, 100000
while l+1 < r:
    m = (l+r)//2
    if ask(x, m) > ask(x, m+1): l = m
    else: r = m