lx = 0
rx = 10**5

while lx < rx:
    print(lx, -1)
    tl = int(input())
    print(rx, -1)
    tr = int(input())
    mx = (lx+rx)//2
    if lx+1 == rx:
        if tl > tr:
            mx += 1
        break
    if tl < tr:
        rx = mx
    else:
        lx = mx

ly = 0
ry = 10**5
while ly < ry:
    print(-1, ly)
    tl = int(input())
    print(-1, ry)
    tr = int(input())
    my = (ly+ry)//2
    if ly+1 == ry:
        if tl > tr:
            my += 1
        break
    if tl < tr:
        ry = my
    else:
        ly = my
print(mx, my)