import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Scanner;

/**
 *
 * @author muran4
 */
public class Chessboard {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) throws IOException {
         BufferedReader input = new BufferedReader(new InputStreamReader(System.in));
        
        String line;
        String[] arr;
        long[] serie;
        int num;
        while((line = input.readLine())!=null){
           arr = line.split(" ");
           int pocet = 0;
           num = Integer.parseInt(arr[0]);
           switch(arr[1].charAt(0)){
              case 'N':pocet = knight(num); break;
              case    'R': pocet = num;break;
               case     'B':pocet = num; break;
               case     'K':pocet = king(num); break;
                   
           }
            System.out.println(pocet);
            
        }
    }

    private static int knight(int num) {
        if(num == 1)return 1;
        if(num == 2)return 1;
        if(num == 3)return 1;
        return 3;
    }

    private static int king(int num) {
        if(num == 1)return 1;
        if(num == 2)return 2;
        return 4;
    }
    
}