题解 | #迷路的牛牛#

import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        // 注意 hasNext 和 hasNextLine 的区别
        int n = in.nextInt();
        String dir = in.next();

        char[] arr = {'N', 'E', 'S', 'W'};
        int current = 0;

        for (int i = 0; i < n; i++) {
            char turn = dir.charAt(i);
            if (turn == 'L') {
                current = (current + 3) % 4;
            } else if (turn == 'R') {
                current = (current + 1) % 4;
            }
        }
        System.out.println(arr[current]);
    }
}