#include<iostream>
using namespace std;
int a[205][205];
int main()
{
    int st,dr,mij,x=0,y=0,X,Y,N,i;
    st=0, dr=199;
    while (st<=dr)
    {
        mij=(st+dr)>>1;
        cout<<mij<<" "<<mij<<"\n";
        cout.flush();
        cin>>N;
        if (N==0)
            return 0;
        if (N>0)
            dr=mij-1;
        else
            st=mij+1;
    }
    X=st;
    for (i=X;i>=0;--i)
    {
        st=0, dr=2*X-i;
        while (st<=dr)
        {
            mij=(st+dr)>>1;
            cout<<i<<" "<<mij<<"\n";
            cout.flush();
            cin>>N;
            if (N==0)
                return 0;
            if (N>0)
                dr=mij-1;
            else
                st=mij+1;
        }
    }
    for (i=X;i>=0;--i)
    {
        st=0, dr=2*X-i;
        while (st<=dr)
        {
            mij=(st+dr)>>1;
            cout<<mij<<" "<<i<<"\n";
            cout.flush();
            cin>>N;
            if (N==0)
                return 0;
            if (N>0)
                dr=mij-1;
            else
                st=mij+1;
        }
    }
    return 0;
}