题解 | #字符串加密#

import java.util.*;


public class Main{
    public static void main(String[] arg){
        Scanner sc=new Scanner(System.in);
        while(sc.hasNextLine()){
            String my = sc.nextLine();
            String mw = sc.nextLine();
            List<String> list = new ArrayList<>();
            for(int i=0;i<my.length();i++){
                if(!(list.contains((""+my.charAt(i))))){
                    list.add(""+my.charAt(i));
                }

            }
            char c = 'a';
            while(c<='z'){
                if(!(  (list.contains((""+c).toUpperCase())) ||(list.contains(""+c))    )){
                    list.add((""+c).toUpperCase());
                }
                c=(char)(c+1);
            }


            for(int i=0;i<mw.length();i++){
                if('a'<=mw.charAt(i)&&mw.charAt(i)<='z'){
                    System.out.print(list.get(mw.charAt(i)-'a').toLowerCase());
                }else if('A'<=mw.charAt(i)&&mw.charAt(i)<='Z'){
                    System.out.print(list.get(mw.charAt(i)-'A').toUpperCase());
                }
            }
            System.out.println();


         }
     }
}