#define here cerr<<"===========================================\n"
#define dbg(x) cerr<<#x<<": "<<x<<endl;
#include <bits/stdc++.h>
#define ld double
#define ll long long
#define ull unsigned long long
#define llinf 100000000000000000LL // 10^17
#define iinf 2000000000 // 2*10^9
#define pb push_back
#define eb emplace_back
#define popb pop_back
#define fi first
#define sc second
#define endl '\n'
#define pii pair<int,int>
#define pll pair<ll,ll>
#define pld pair<ld,ld>
#define all(a) a.begin(),a.end()
#define ceri(a,l,r) {cerr<<#a<<": ";for(ll i_ = l;i_<=r;i_++) cerr<<a[i_]<< " ";cerr<<endl;}
#define cer(a) {cerr<<#a<<": ";for(ll x_ : a) cerr<<x_<< " ";cerr<<endl;}
#define si(a) (ll)(a.size())
using namespace std;

ll ask(ll x){
    cout<<"query "<<x<<endl;
    ll ans; cin >> ans;
    return ans;
}
void tc(){
    ll c = 1;
    ll poc = ask(0);
    ll ans = 0;
    for(ll d = 1;d<=18;d++){
        ll l = 1,r = 10,mid,rez;
        while(l<=r){
            mid = (l+r)/2;
            if(ask(mid*c)<poc){
                rez = mid;
                r = mid-1;
            }else l = mid+1;
        }
        ans+=(10-rez)*c;
        c*=10;
        dbg(ans);
    }
    cout<<"answer "<<ans<<endl;
}

int main(){
	int t; t = 1;
	while(t--){
		tc();
	}
	return (0-0);
}