import sys
def query(p):
	print(p[0],p[1])
	sys.stdout.flush()
	return int(input())
l,r = -1,100000+1
for i in range(40):
	L=query(((l*2+r)//3,0))
	R=query(((l+r*2)//3,0))
	if L == 0 or R == 0:
		find=True
		break
	if L < R:
		r = (l+r*2)//3
	else:
		l = (l*2+r)//3
if not find:
	y=query(((l+r*2)//3,0))
	x=(l+r*2)//3
	query((x,y))