PAT乙

import java.util.Scanner;


public class Basic1002 {

    public static void main(String[] args) {
        String[] list = {"ling", "yi", "er", "san", "si", "wu", "liu", "qi", "ba", "jiu"};
        Scanner in = new Scanner(System.in);

        //把String转化成char[]用toCharArray
        char[] arr = in.next().toCharArray();

        int sum = 0;

        //把char转化为int，用char-48
        for (char ch : arr)
            sum += (ch - 48);

        StringBuilder builder = new StringBuilder();
        for (char ch : String.valueOf(sum).toCharArray()) {
            builder.append(list[(ch - 48)]).append(" ");
        }
        //把String首尾的空白去掉，用trim
        System.out.print(new String(builder).trim());
    }
}