import acm.program.ConsoleProgram;

import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;

public class Task4 extends ConsoleProgram {
    public void run(){
        int key=readInt();
        String allFile = fileReader();
        char[] text = allFile.toCharArray();
        String res="";

        char[] buffer = new char[allFile.length()];
        char[] upper =
                {'A','B','C','D','E','F','G','H','I','J','K','L','M','N', 'O','P','Q',
                        'R','S','T','U','V','W','X','Y','Z'};

        char[] lower= {'a','b','c','d','e','f','g','h',
                'i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'};

    for(int i=0;i<allFile.length();i++){
        for(int j=0;j<26;j++){
            if(text[i]==upper[j]){
                if (j!=25-key){
                    res+=upper[j+key];
                }else{
                    res+=upper[j-26+key];
                }
            }
            if(text[i]==lower[j]){
                if (j!=25){
                    res+=lower[j+key];
                }else{
                    res+=lower[j-26+key];
                }
            }

        }
    }
        println(res);
        try {
            fileWriter("out.txt", res);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public String fileReader() {
        FileReader fr = null;
        try {
            fr = new FileReader("C:\\Users\\БарабухаМаріяМаксимі\\Desktop\\home11\\in.txt");
        } catch (FileNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        Scanner scan = new Scanner(fr);
        String str = "";

        boolean f = true;

        while (scan.hasNextLine()) {

            if (f) {
                f = false;
                str = scan.nextLine();
            } else {
                str = str + "\n" + scan.nextLine();

            }

        }

        return str;
    }

    public void fileWriter(String fileName, String str) throws IOException {

        FileWriter nFile = new FileWriter(fileName);
        nFile.write(str+"\n");
        nFile.close();
    }

}