1 #include<cstdio>
 2 #include<cstring>
 3 #include<string>
 4 #include<map>
 5 #include<iostream>
 6 using namespace std;
 7 #define N 1010
 8 map <string,int> mp;
 9 struct MAX {
10     int a;
11     string color;
12 };
13 int main()
14 {
15     int n;
16     while(~scanf("%d",&n),n)
17     {
18         mp.clear();
19         for(int i =0 ;i < n ;i++)
20         {
21             char ss[20];
22             scanf("%s",ss);
23             string s = ss;
24             if(mp.find(ss)==mp.end()) mp[s] = 1;
25             else mp[s]++;
26         }
27         MAX mx;
28         int sum = 0 ;
29         map <string , int >:: iterator it;
30         for( it = mp.begin(); it!=mp.end(); it++)
31         {
32             if(sum<(*it).second)
33             {
34                 sum = (*it).second;
35                 mx.a = sum;
36                 mx.color = (*it).first;
37             }
38         }
39         printf("%s\n",mx.color.c_str());
40     }
41     return 0;
42 }