#include <stdio.h>


#define SIZE 1024
main () {
	int c;
	while (1) {
		c = fgetc(stdin);
		if (c == -1) {
			exit();
		}
		if ((c >= 'a' && c <= 'z')) {
			c = c + 13;
			if (c > 'z')
				c = c - 26;
		} else if ((c >= 'A' && c <= 'Z')) {
                        c = c + 13;
                        if (c > 'Z')
                                c = c - 26;
                }
		printf("%c", c);
	}
}