#include<iostream>
#include<map>
#include<cstdio>
#include<string>
using namespace std;
int main()
{
    map<string,string>p;
    string a,b;
    while(cin>>a)
    {
        if(getchar()=='\n')break;
        cin>>b;
        p[b]=a;
    }
    if(p[a]=="")cout<<"eh"<<endl;
    else cout<<p[a]<<endl;
    while(cin>>a)
    {
        if(p[a]=="")cout<<"eh"<<endl;
        else cout<<p[a]<<endl;
    }
    return 0;
}