题解 | #单词倒排#

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 sc = new Scanner(System.in);
        while (sc.hasNext()) {
            String str = sc.nextLine();
            String[] s = str.split("[^A-Za-z]+");
            for (int i = s.length - 1; i >= 0 ; i--) {
                System.out.print(s[i] + " ");
            }
        }
    }
}