import java.util.Scanner;

/*
Feladat: I438
Név: Tersztenyák Balázs
Iskola: Budapest Kempelen Farkas Gimnázium
E-mail: tbalu912@gmail.com
Fordídóprogram: Eclipse 4.4.2
*/

public class I438 {
	
	static int meret=10;
		
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		Palya palya = new Palya(meret);
		palya.beolvasas(sc);
		
		String utasitasok = sc.nextLine();
		sc.close();
		
		Robot robot = new Robot(palya, 0,0,0);
		char[] utasit = utasitasok.toCharArray();
		for(int i = 0; i < utasit.length; i++){
			robot.lepes(utasit[i]);
		}
		
		System.out.println(robot.kavics);
	}
	
	static class Palya {
		private int meret;
		private int[][] palya;
		
		public Palya(int meret) {
			this.meret=meret;
			palya = new int[meret][];

			for (int i=0;i<meret;i++) {
				palya[i]=new int[meret];
			}

		}
		
		public void beolvasas(Scanner sc){
			
			for(int i = 0; i < meret; i++){
				for(int j = 0; j < meret; j++){
					palya[i][j] = sc.nextInt();
				}
			}
			sc.nextLine();
		}
		
		public int kavicsdb(int x, int y){
			return palya[y][x];
		}
		
		public void kavicspakolas(int x, int y, boolean lefel){
			if(lefel == true){
				palya[y][x]++;
			}else{
				palya[y][x]--;
			}
		}
		
	}
	
	static class Robot {
		private Palya palya;
		private int x = 0;
		private int y = 0;
		private int kavics;
		
		public Robot(Palya palya, int x, int y, int kavics) {
			this.palya = palya;
			this.x = x;
			this.y = y;
			this.kavics = kavics;
		}
		
		public void ujkoordinatak(char c){
			if(c == 'E'){
				y--;
			}else if(c == 'H'){
				y++;
			}
			else if(c == 'B'){
				x--;
			}else if(c == 'J'){
				x++;
			}
		}
		
		public void kavicspakolas(){
			if(palya.kavicsdb(x, y) > 1){
				palya.kavicspakolas(x, y, false);
				kavics++;
			}else if(palya.kavicsdb(x, y) == 0 && kavics > 0){
				palya.kavicspakolas(x, y, true);
				kavics--;
			}
		}
		
		public void lepes(char c){
			ujkoordinatak(c);
			kavicspakolas();
		}
		
	}
}