1 #include<iostream>
 2 #include<string.h>
 3 #include<stdio.h>
 4 #include<map>
 5 #include<string>
 6 using namespace std;
 7 
 8 map<string,int>mp;
 9 int main() {
10     string ch,ah;
11     int n;
12     while(~scanf("%d",&n),n)
13     {
14         cin>>ah;
15         mp[ah]++;
16         n--;
17         while(n--)
18         {
19             cin>>ch;
20             mp[ch]++;
21             if(mp[ch]>mp[ah])
22             ah=ch;
23         }
24         cout<<ah<<endl;
25     }
26     return 0;
27 }