#include <bits/stdc++.h>

using namespace std;
typedef long long ll;

ll guess(ll deg, ll s)
{
    int l=1, r=9;
    int mid=4;
    while(l<=r)
    {
        cout<<"query "<<mid*deg<<"\n";
        ll ans; cin>>ans;
        if(ans==s+mid){l=mid+1; mid=(l+r)/2;}
        else{r=mid-1; mid=(l+r)/2;}
    }
    return 10-r-1;
}

int main()
{
    ll x=0;
    cout<<"query "<<0<<"\n";
    ll sum;
    cin>>sum;
    ll d=1;
    for(ll i=0; i<3; i++)
    {
        x+=d*guess(d, sum);
        d*=10;
    }
    cout<<"answer "<<x;
    return 0;
}