#include <iostream>

using namespace std;

int main()
{
    int n = 199, i, j, h, maxi, mini, maxj, minj, lasti, lastj;
    bool found = false, bi = true, first = true;

    maxi = n;
    mini = 0;
    maxj = n;
    minj = 0;



    while (!found) {
        if (bi) {
            i = (maxi + mini) / 2;
            j = minj;
        } else {
            j = (minj + maxj) / 2;
            i = mini;
        }

        if (i == lasti) {
            bi = false;
        }

        if (i == lasti && j == lastj && first) {
            j++;
            first = false;
        } else if (i == lasti && j == lastj) {
            i++;
        }

        cout << i << " " << j << endl;
        lasti = i;
        lastj = j;
        cout.flush();
        cin >> h;

        if (h == 0) {
            found = true;
            break;
        } else if (h > 0) {
            if (bi) {
                maxi = i;
            } else {
                maxj = j;
            }
        } else if (h < 0) {
            if (bi) {
                mini = i;
            } else {
                minj = j;
            }
        }

    }
    return 0;
}