import java.util.ArrayList;
import java.util.Objects;
import java.util.Scanner;
class Direction {
    ArrayList<String> Direction = new ArrayList<>();
    String nowDirection;
    public Direction(String nowDir) {
        this.nowDirection = nowDir;
        Direction.add("E");
        Direction.add("W");
        Direction.add("S");
        Direction.add("N");
    }
    String getNow() {
        return nowDirection;
    }
    String getNext() {
        return Direction.get(Direction.indexOf(nowDirection)+1%4);
    }
    void goNext() {
        this.nowDirection = Direction.get((Direction.indexOf(nowDirection)+1)%4);
    }
}
public class Rotating_Golem_1806 {
    public static void log(Object obj) {
        System.out.println(obj.toString());
    }
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String a = sc.next();
        String b = sc.next();
        Direction dir = new Direction(a);
        int cnt = 0;
        while(!b.equals(dir.getNow())) {
            dir.goNext();
            cnt+=1;
        }
        log(cnt);
    }
}