#include <stdio.h>

char names[26][62];
int eated[26];
int index[26];

int r,s,c;
int i,j;
char line[260],nl;

int main()
{
    scanf("%d %d %d",&r,&s,&c);
    while (r != 0)
    {
	for (i=0;i<c;i++)
	{
	    scanf("%s",names[i]);
	    index[names[i][0]-'A'] = i;
	    eated[i] = 0;
	}

	scanf("%c",&nl);
	
	for (i=0;i<r;i++)
	{
	    gets(line);
	    
	    for (j=0;j<s;j++)
	    {
		if (line[j] != '*') {
		    eated[index[line[j]-'A']]++;
		}
	    }
	}
	
	j = 0;
	for (i=0;i<c;i++)
	    if (eated[i] > eated[j])
		j = i;
		
	printf("Nejzravejsi cervotoc je %s.\n",names[j]);    

	scanf("%d %d %d",&r,&s,&c);
    }

    return 0;
}