import java.util.Scanner;public class Main {    public static void main(String[] args) {        Scanner in = new Scanner(System.in);        String str = in.next();        //以字符串形式读取给定的数字                int[] count = {0,0,0,0,0,0,0,0,0,0,0};    //count数组：存储0~9这十个数字出现的次数                for(int i=0; i