#include <bits/stdc++.h>

using namespace std;

int main()
{
    ios_base::sync_with_stdio(false);
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    cout<<"query 0"<<endl;
    long long sum; cin>>sum;
    long long stepen=1;
    long long ans=0;
    for (long long i=0;i<=18;i++)
    {
        long long l=1;
        long long r=9;
        long long rez=-1;
        while (l<=r)
        {
            long long mid=(l+r)/2;
            cout<<"query "<<mid*stepen<<endl;
            long long pos; cin>>pos;
            if (pos==sum+mid) 
            {
                rez=mid;
                l=mid+1;
            }
            else r=mid-1;
        }
        if (rez!=-1) ans+=(10-rez-1)*stepen;
        stepen*=10;
    }
    cout<<"answer "<<ans<<endl;
}