#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int main(void)
{
char str[BUFSIZ], str2[BUFSIZ];
int len, i;
if(fgets(str, sizeof(str), stdin) == NULL) exit(1);
if(sscanf(str, "%s", str2) != 1) exit(1);
len = strlen(str2);
for(i=0; i<len; i++)
if((str2[i] >= 'a' && str2[i] <= 'm') ||
(str2[i] >= 'A' && str2[i] <= 'M')) str2[i] += 13;
else if((str2[i] >= 'n' && str2[i] <= 'z') ||
(str2[i] >= 'N' && str2[i] <= 'Z')) str2[i] -= 13;
printf("%s\n", str2);
return 0;
}