题解 | #简单密码#

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);
        String str = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
        String btr = "22233344455566677778889999bcdefghijklmnopqrstuvwxyza0123456789";
        String x = in.next();
        for(int i = 0 ; i< x.length();i++){
            System.out.print(btr.charAt(str.indexOf(x.charAt(i))));
        }
    }
}