/* rot13 algorithm. Very Simple and Interesting */

#include<stdio.h>
#define ROT 13

void rot13(char cadena[]){
	int c,e;
	int i = 0;
	while(cadena[i] != 0){
		c = cadena[i];
		if(c >='A' && c <='Z')
		{
			if((e = c + ROT) <= 'Z')
				putchar(e);
				else
				{
					e = c - ROT;
					putchar(e);
				}
		}
		else if(c >='a' && c <='z')
		{
			if((e= c + ROT) <= 'z')
				putchar(e);
			else
			{
				e = c - ROT;
				putchar(e);
			}
		}
		else
			putchar(c);
		i++;
		}
}

void main(){
	char input[100];
	 scanf("%[^\n]%*c", input);
	 rot13(input);
}