import java.util.*; public class Main{ public static void main(String[] argv){ int dir = 0; char[] cs = new char[]{'N','E','S','W'}; Scanner in = new Scanner(System.in); int n = in.nextInt(); String s = in.next(); for(int i = 0; i < n; i++){ if(s.charAt(i) == 'L'){ dir = (dir - 1 + 4)%4; } else{ dir = (dir + 1)%4; } } System.out.println(cs[dir]); } }