#include <stdio.h>

char jmena[27][70];
int  zral[27];


int radek()
{
   int r,b,c;
   int i,j;
   char k;
   char s[70];
   
   
   scanf("%d %d %d", &r, &b, &c);
   if (r == 0) return 0;
   scanf("\n");
   
   for (i = 0; i < 27; i++)
     zral[i] = 0;
     
   for (j = 0; j < c; j++) {
      scanf("%s\n", s);
      strcpy(jmena[s[0]-'A'], s);
   }
 
   for (i = 0; i < r; i++) {
      for ( j = 0; j < b; j++) {
         scanf("%c", &k);      
	 if (k != '*') zral[k-'A']++;
      }
      scanf("\n");
   }    
   
   j = 0;
   for (i = 0; i < 27; i++)
      if (zral[j] < zral[i]) j = i;
      
   printf("Nejzravejsi je %s.\n", jmena[j]);

   return 1;
}



int main()
{
  while (radek()) ;
  return 0;
}