#include <cstdio>

using namespace std;

int Map[205][205];
bool U[205][205];

int get(int x, int y) {
    if (U[x][y])
        return Map[x][y];

    int val;
    printf("%d %d\n", x, y);
    fflush(stdout);

    scanf("%d", &val);
    Map[x][y] = val;
    U[x][y] = true;

    return val;
}

int main() {
    int x, y;

    x = 0;
    y = 199;

    while (x < 200 && y >= 0) {
        if (get(x, y) == 0)
            break;
        else
            if (get(x, y) < 0)
                x++;
            else
                y--;
    }

    return 0;
}