xl, xr = 0, 100000
while xr - xl > 1:
    mid = (xr + xl) // 2
    print(f"{xl} {0}")
    dl = int(input())
    print(f"{xr} {0}")
    dr = int(input())
    if dl < dr:
        xr = mid
    else:
        xl = mid
print(f"{xl} {0}")
dl = int(input())
print(f"{xr} {0}")
dr = int(input())
if dl < dr:
    x = xl
    y = dl
else:
    x = xr
    y = dr
print(f"{x} {y}")