#include <stdio.h>

#define KEY 3

int main ()
{
	int ch;
	while ((ch = getchar ()) != EOF) {
		char c = ch;
		switch (c) {
		case 'a' ... 'z':
			c = 'a' + (KEY + c - 'a') % ('z' - 'a' + 1);
			break;
		case 'A' ... 'Z':
			c = 'A' + (KEY + c - 'A') % ('Z' - 'A' + 1);
			break;
		}
		putchar (c);
	}
	return 0;
}