#include <cstdio>

using namespace std;

int main () {
    int x, y, n = 199, alt;

    x = n; y = n;
    while (1) {
        printf ("%d %d\n", x, y);
        fflush (stdout);
        scanf ("%d", &alt);
        if (alt == 0)
            break;
        if (alt < 0)
            x --;
        if (alt > 0)
            y --;
    }
    return 0;
}