import java.util.*;
public class Main{
    public static void main(String[] args){
        Scanner sc=new Scanner(System.in);
        String input=sc.nextLine();
        if(!Character.isWhitespace(ch) && !Character.isDigit(ch))
        {
            System.out.print("Invalid input");
            return;
        }
        StringBuilder result = new StringBuilder();
        for(char ch:input.toCharArray())
        {
            if(Character.isUpperCase(ch))
            {
                result.append((char)('Z' - (ch - 'A')));
            }
            else if(Character.isLowerCase(ch))
            {
                result.append((char)('z' - (ch - 'a')));
            }
            else if(ch == ' ')
            {
            result.append(' ');
            }
        }
        System.out.println(result.toString());
    }
}