#include <stdio.h>
#include <string.h>

void Sum(char a[], char b[], int c[], int lena, int lenb);


int main(void)
{
    int numbers;//氣球數(shù)
    int order=0;//存儲次序
    int max = 1, maxi = 0;//最大值和最大值下標
    int i, j;
    char a[1000][15] = { 0 };//存儲顏色字符串
    int b[1000] = { 0 };//存儲數(shù)量
    while (1)
    {
        scanf("%d", &numbers);
        if (!numbers)
            break;
    
        /***********初始化*********/
        char a[1000][15] = { 0 };
        int  b[1000] = { 0 };
        order = 0;
        max = 1;
        maxi = 0;
        /************************/


        for (i = 0; i < numbers; i++)
        {
            scanf("%s", a[i]);
            for (j = 0; j < order; j++)
            {
                if (strcmp(a[i], a[j]) == 0)
                {
                    
                    if (++b[j] > max)
                    {
                        max  = b[j];
                        maxi = j;
                    }
                    goto A;
                }
            }
            b[order] = 1;
            order++;
        A:;
        }

        for (i = maxi; b[i]; i++)
        {
            if (b[i] == max)
                printf("%s\n", a[i]);
        }
        //printf("%s", a[maxi]);
        
    }
}