#include <bits/stdc++.h>
#define pb push_back
#define ott(i,l,r) for (register int i = l; i <= r; i ++)
#define tto(i,l,r) for (register int i = r; i >= l; i --)
using namespace std;
int read () {
	int x = 0; bool f = false; char c = getchar ();
	while (!isdigit (c)) f |= (c == '-'), c = getchar ();
	while (isdigit (c)) x = (x << 3) + (x << 1) + (c ^ 48), c = getchar ();
	return f ? -x : x;
}
typedef long long ll;
const int N = 1e6 + 110, mod = 998244353;
int lim = 1e6;
string ask (int x, int y) {
	if (x < 0) x = 0; if (x > lim) x = lim;
	if (y < 0) y = 0; if (y > lim) y = lim;
	cout << x << " " << y << endl;
	string s; getline (cin, s);
	if (s.back () == '!') exit (0);
	return s;
}
string x, same, close;
int main () {
	ios :: sync_with_stdio (false);
	cin.tie (0), cout.tie (0);
	ask (0, 0); same = ask (0, 0), x = ask (1, 1);
	if (x == same) {
		ask (0, 1), ask (1, 0);
	    return 0;
	}
	close = x;//close
	register int xl = 0, xr = lim, yl = 0, yr = lim, xmid, ymid;
	ott (i, 1, 30) {
		if (!(xl ^ xr) && !(yl ^ yr)) break;
		xmid = xl + xr >> 1, ymid = yl + yr >> 1;
		ask (xmid, ymid);
		if (ask (xmid + 1, ymid) == close) xl = xmid + 1;
		else xr = xmid - 1; 
		if (ask (xmid + 1, ymid + 1) == close) yl = ymid + 1;
		else yr = ymid - 1;
	}
	ask (xl, yl), ask (xl + 1, yl + 1),
	ask (xl + 1, yl), ask (xl, yl + 1);
	return 0;
}