POJ -2503 Babelfish

#include<stdio.h>
#include<string>
#include<iostream>
using namespace std;
#include<map>
map<string,string>M;
int main()
{
char a[30];
char b[15];
char c[15];
char d[15];
while(gets(a)&&a[0]!='\0')
{
sscanf(a,"%s %s",&b,&c);
M[c]=b;
}
while(gets(d)&&d[0]!='\0')
{
if(M[d][0]=='\0')
cout<<"eh\n";
else
cout<<M[d]<<endl;
}
return 0;
}