import numpy as np
import sys

l = [0, 50000, 100000]

while True:
    m_l = [-1, -1, -1]
    for i in range(3):
        print(l[i], 0)
        d = int(input())
        if d == 0:
            sys.exit()
        m_l[i] = int(d)
    M_l = np.array(m_l)
    l.pop(np.argmax(M_l))
    l.append(l[1])
    l[1] = (l[0] + l[2]) // 2
    if l[0] == l[1]:
        break


print(l[0], 0)
print(l[0], int(input()))
if int(input()) == 0:
    sys.exit()
print(l[2], 0)
print(l[2], int(input()))
sys.exit()