#include <stdio.h>

char mena[ 26 ][ 61 ];
int pocty[ 26 ];

int main( void )
{
	int R, S, C;
	char meno[ 61 ];
	char riadok[ 251 ];
	int i, j, min;

	while ( 1 ) {
		scanf( "%d %d %d", &R, &S, &C );
		if ( ( R < 1 ) || ( S > 250 ) || ( C < 1 ) || ( C > 26 ) ) {
			return 0;
		}
		memset( mena, 0, sizeof( mena ) );
		memset( pocty, 0, sizeof( pocty ) );
		for ( i = 0; i < C; i++ ) {
			scanf( "%s\n", meno );
			strcpy( mena[ meno[ 0 ] - 'A' ], meno );
		}
		for ( i = 0; i < R; i++ ) {
			scanf( "%s\n", riadok );
			for ( j = 0; j < S; j++ ) {
				if ( riadok[ j ] != '*' ) 
					pocty[ riadok[ j ] - 'A' ]++;
			}
		}
		min = 0;
		while ( !mena[ min ][ 0 ] )
			min++;
		for ( i = min + 1; i < 26; i++ ) {
			if ( mena[ i ][ 0 ] && ( pocty[ i ] >= pocty[ min ] ) ) {
				min = i;
			}
		}
		printf( "Nejzravejsi cervotoc je %s.\n", mena[ min ] );
	}
}