import java.io.*;

public class Rot13
{
  static void rot( InputStream in ) throws IOException
  {
		for ( int b = 0; (b = in.read()) >= 0; )
		{
			int cap = b & 32;
			b &= ~cap;
			b = ((b >= 'A') && (b <= 'Z') ? ((b - 'A' + 13) % 26 + 'A') : b) | cap;
			System.out.print( String.valueOf((char) b) );
		}
  }

  public static void main(String args[])
  {
    try
    {
      rot( System.in );
    }
    catch ( IOException e )
    {
      e.printStackTrace();
    }
    System.out.flush();
  }
}