#include <iostream>
#include <sstream>
#include <map>

using namespace std;

int main()
{
    ios::sync_with_stdio(false);
    map<string,string> lexicon;
    char key[10],value[10];
    bool trans = false;
    while(true){
        cin.get();
        char end = cin.peek();
        if (end == '\n'){
            if(trans) return 0;
            trans = true;
        if(!trans){
            scanf("%10s %10s",value,key);
            lexicon[key] = value;
        }else{
            scanf("%10s",key);
            if(lexicon[key].empty()) cout << "eh" << endl;
            else cout << lexicon[key] << endl;
        }
    }
}