#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, l1, l2, x, y;
int main() {
    cin.sync_with_stdio(false);
    cout.sync_with_stdio(false);
    l1 = 0;
    l2 = 199;
    cout << l1 << ' ' << 0 << '\n';
    cout.flush();
    cin >> l;
    cout << l2 << ' ' << 0 << '\n';
    cout.flush();
    cin >> r;

    while(l2 - l1 > 1) {
        m = (l1 + l2) / 2;
        cout << l1 << ' ' << 0 << '\n';
        cout.flush();
        cin >> x;

        if(x < 0)
            l1 = m;

        if(x == 0)
            return 0;

        if(x > 0)
            l2 = m;
    }

    y = l;
    l = 0;
    r = 199;

    while(r - l > 1) {
        m = (l + r) / 2;
        cout << y << ' ' << m << '\n';
        cout.flush();
        cin >> x;

        if(x < 0)
            l = m;

        if(x == 0)
            return 0;

        if(x > 0)
            r = m;
    }

    return 0;
}