#include <stdio.h>
#include <string.h>

char caesar(char c, int shift) {
  if (c >= 'a' && c <= 'z') return 'a' + (c - 'a' + shift) % 26;
  if (c >= 'A' && c <= 'Z') return 'A' + (c - 'A' + shift) % 26;
  return c;
}

int main() {
  int shift;
  printf("Enter shift: ");
  scanf("%d", &shift);
  string msg;
  printf("Enter message: ");
  scanf("%s", &msg);
  for (int i = 0; msg[i] != 0; i++) {
    printf("%c", caesar(msg[i], shift));
  }
  printf("\n");
  return 0;
}