#include<bits/stdc++.h>
using namespace std;
#define ll long long
ll Ask(ll x){
    printf("query %lld\n",x);fflush(stdout);
    scanf("%lld",&x);return x;
}
int main(){
    ll t0=Ask(0);
    ll x=0,z=1;
    for(int i=0;i<2;i++,z*=10){
        int l=1,r=9,p=0;
        while(l<=r){
            int mi=(l+r)>>1;
            if(Ask(z*mi)==t0+mi)p=mi,l=mi+1;
            else r=mi-1;
        }
        x+=z*(9-p);
    }
    printf("%lld\n",x);
    return 0;
}