题解 | #简单密码# 构造一个hash表

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
        // while (in.hasNextInt()) { // 注意 while 处理多个 case
        //     int a = in.nextInt();
        //     int b = in.nextInt();
        //     System.out.println(a + b);
        // }
        String str = in.nextLine();
        
        int[] map = new int [26];
        int value = 2;
        int r = 0;
        for(int i=0; i<15; i++){
            map[i] = value;
            r += 1;
            if (r==3){
                value += 1;
                r = 0;
            }
        }
        map[15] = 7;
        map[16] = 7;
        map[17] = 7;
        map[18] = 7;
        map[19] = 8;
        map[20] = 8;
        map[21] = 8;
        map[22] = 9;
        map[23] = 9;
        map[24] = 9;
        map[25] = 9;
        StringBuilder b = new StringBuilder();
        for(char c : str.toCharArray()){
            if (c >= 'a' && c <= 'z'){
                b.append(map[c-'a']);
            } 
            else if (c >= 'A' && c < 'Z'){
                b.append((char)(c + ('a' - 'A'  + 1)));
            }
            else if (c == 'Z'){
                b.append('a');
            }else{
                b.append(c);
            }
        }
        System.out.println(b.toString());
    }
}