#include <bits/stdc++.h>

#define pb push_back
#define mp make_pair
#define mt make_tuple
#define ll long long
#define pii pair<int,int>
#define tii tuple <int,int,int>
#define N 200005
#define mod 1000000005
#define X first
#define Y second
#define eps 0.0000000001
#define all(x) x.begin(),x.end()
#define tot(x) x+1,x+n+1
using namespace std;

int lx, ly, mx, my, l, r, m, rx, ry;
int main() {
    cin.sync_with_stdio(false);
    cout.sync_with_stdio(false);
    lx = ly = 0;
    rx = ry = 199;
    cout << lx << ' ' << ly << '\n';
    cout.flush();
    cin >> l;
    cout << rx << ' ' << ry << '\n';
    cout.flush();
    cin >> r;

    while(l < 0) {
        mx = (lx + rx + 1) / 2;
        my = (ly + ry + 1) / 2;
        cout << mx << ' ' << my << '\n';
        cout.flush();
        cin >> m;

        if(m < 0) {
            lx = mx;
            ly = my;
        }

        if(m == 0)
            return 0;

        if(m < 0) {
            rx = mx;
            ry = my;
        }
    }

    return 0;
}