using System.Numerics;

public class Program
{
    public static void Main()
    {

        //int num = int.Parse(Console.ReadLine() ?? string.Empty);
        //string[] str = (Console.ReadLine() ?? string.Empty).Trim().Split(' ');
        string str = Console.ReadLine() ?? string.Empty;
        string str2 = Console.ReadLine() ?? string.Empty;


        if (str == str2)
        {
            Console.WriteLine(0);
        }
        else
        {
            int s = 0;
            int e = 0;
            if (str == "E")
            {
                s = 1;
            }
            else if (str == "W")
            {
                s = 3;
            }
            else if (str == "S")
            {
                s = 2;
            }
            else
            {
                s = 4;
            }
            if (str2 == "E")
            {
                e = 1;
            }
            else if (str2 == "W")
            {
                e = 3;
            }
            else if (str2 == "S")
            {
                e = 2;
            }
            else
            {
                e = 4;
            }

            if (s == 4)
            {
                Console.WriteLine(e);
            }
            else
            {
                int g = int.Parse((s - e).ToString().Replace("-", ""));
                Console.WriteLine(g);
            }
        }

    }
}