#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define rep(i, n) for(ll i = 0, i##_len = (n); i < i##_len; i++)
#define reps(i, s, n) for(ll i = (s), i##_len = (n); i < i##_len; i++)
#define rrep(i, n) for(ll i = (n) - 1; i >= 0; i--)
#define rreps(i, e, n) for(ll i = (n) - 1; i >= (e); i--)
#define all(x) (x).begin(), (x).end()
#define sz(x) ((ll)(x).size())
#define len(x) ((ll)(x).length())

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);
    // ifstream in("input.txt");
    // cin.rdbuf(in.rdbuf());
    ll x = 0, y = 0;
    ll xs = 10000;
    ll bx = 0, br, ax, ar;
    printf("%lld %lld\n", 0, 0);
    cin >> br;
    if (br == 0) {
        printf("%lld %lld\n", 0, 0);
        return 0;
    }
    while(true) {
        ax = bx + xs;
        printf("%lld %lld\n", ax, 0);
        cin >> ar;
        if (ar == 0) {
            printf("%lld %lld\n", ax, 0);
            return 0;
        }
        if (br <= ar) {
            if (xs == 1) break;
            xs /= 10;
        }
        else {
            bx = ax;
            br = ar;
        }
    }
    x = bx;
    ll ys = 10000;
    ll by = 0, ay;
    while(true) {
        ay = by + ys;
        printf("%lld %lld\n", x, ay);
        cin >> ar;
        if (ar == 0) {
            printf("%lld %lld\n", x, ay);
            return 0;
        }
        if (br <= ar) {
            if (ys == 1) break;
            ys /= 10;
        }
        else {
            by = ay;
            br = ar;
        }
    }
    printf("%lld %lld\n", x, y);
    return 0;
}