POJ2503（map)

#include <iostream>
#include <cstring>
#include <cstdio>
#include <map>
using namespace std;
char ss[100],s1[50],s2[50];
string s3;
map<string,string> mp;
int main(){
    //freopen("in","r",stdin);
    while(gets(ss)){
        if(!strlen(ss))
            break;
        sscanf(ss,"%s %s",s1,s2);
        mp[s2] = s1;
    }
    while(cin >> s3){
        if(mp.find(s3) != mp.end())
            cout << mp[s3] << endl;
        else puts("eh");
    }
    return 0;
}