import java.util.*;
public class Test12 {
  public static void main(String[] args){
    Scanner sc=new Scanner(System.in);
    String[] line;
    String regex=" ",plain="";
    line=sc.nextLine().split(regex);
    int n=line[0].length();
    int[] chip_=new int[n];
    int tmp=25;
    for(int i=0;i<n;i++){
      int tmp0=(int)line[0].charAt(i)-65;
      int tmp1=(tmp0+tmp)%26+65;
      plain+=(char)tmp1;
      tmp+=25;
    }
    System.out.println(plain);
    sc.close();
  }
}