/*Simple crypt for my mail
 *Compile with gcc. 
 */


#include <stdio.h>
#include <string.h>

void main()
{
int i,c;

   while ((c=getchar()) != EOF) 
    {
         if (64<=c&&c<=89) c++;
         if (92<=c&&c<=123) c--;
    putchar(c);
  }
 ;
}