#include <stdio.h>

// Declare prototypes
int process(char c);

int main(void) {
  int temp;

  while ((temp = getc(stdin)) != '\n') {
    printf("%c", process(temp));
  }
  printf("\n");

  return 0;
}

int process(char c) {
	if (c >= 'a' && c <= 'z') {  // If c is a - z
		return (c - 'a' + 3) % 26 + 'a';
	}
	else 
		return (c - 'A' + 3) % 26 + 'A'; // Else if c is A - Z
}