#pragma GCC optimizer("Ofast")
#pragma GCC target("avx2")
#include <bits/stdc++.h>
#define int long long 
#define ld long double
#define ull unsigned long long 
#define fr first
#define fi first
#define sc second
#define se second
#define all(x) x.begin(), x.end()
#define pii pair<int,int>
using namespace std;

#ifndef fireball
#define tofu ios::sync_with_stdio(0); cin.tie(0);
#else
#define tofu freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout);
#endif 

void db() {cout << '\n';}
template <typename T, typename ...U> void db(T a, U ...b) {cout << a << ' ', db(b...);}

int ask(int x){
    cout << "query " << x << endl;
    int res; cin >> res;
    return res;
}

signed main(){
    int n = ask(0);
    int ans = 0, base = 1;
    for(int i = 0; i < 18; ++i){
        int l = 1, r = 10, res = -1;
        while(l <= r){
            int mid = (l + r) >> 1;
            int tmp = ask(mid * base);
            if(mid + n != tmp){
                r = mid - 1;
                res = mid;
            }
            else l = mid + 1;
        }

        if(~res) ans += base * (10 - res);
        base *= 10;
    }
    cout << "answer " << ans << endl;
}