import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner in = new Scanner(System.in); // 注意 hasNext 和 hasNextLine 的区别 while (in.hasNext()) { // 注意 while 处理多个 case int num = in.nextInt(); String c = in.next(); v(num, c); } } private static void v(int num, String ...