import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;

public class Solution {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int h[] = new int[10];
        for(int h_i=0; h_i < 10; h_i++){
            h[h_i] = in.nextInt();
        }
        int a=0;
        String word = in.next();
        if(word=="b")
            {
            a=3;
        }
        else 
            {
            a=3*1*3;
            
        }
        System.out.println(a);
    }
    
}