/*
---------------------------------------------------
	文字列の暗号化  Hairetu_04_angou
---------------------------------------------------
*/

import java.io.*;

class Hairetu_04_angou {
	public static void main(String[] args) throws Exception {
		
		char[] mae,ato;
		int mojicount,n;
		int key;
		
		System.out.print("文字列を入力してください-->");

		BufferedReader inp=new BufferedReader
			(new InputStreamReader(System.in));
		String keybd;
		keybd=inp.readLine();

		mae=keybd.toCharArray();   // 配列に文字を代入
		mojicount=mae.length;      // 配列長の取得
		ato=new char[mojicount];   // 配列の生成

		System.out.print("暗号キーはいくつ(1-25)？-->");
		keybd=inp.readLine();
		key=Integer.parseInt(keybd);
		
		System.out.print("\n");
		
		for ( n=0 ; n<mojicount ; n++ ) {
			if ( (char)(mae[n]+key) > 'z' )			
				ato[n]=(char)(mae[n]+key-26);
			else
				ato[n]=(char)(mae[n]+key);
		}
			
		keybd=new String(ato);
		System.out.print("暗号化します-->"+keybd+"\n");
	}
}