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


/*int palindrome(FILE &pfp, char *input)
{

  return 0;
}

int cipher(FILE &cfp, char *input)
{

  return 0;
}
*/
int main (void)
{
  FILE* ifp = fopen("input.txt", "r");
  FILE* pfp = fopen("palindromes.txt", "w");
  FILE* cfp = fopen("cipher.txt", "w");

  char input[32] = {0};
  char inputCopy[32] = {0};
  (fscanf(ifp, "%s", input));
  printf(input);
  printf("\n");
  while (fscanf(ifp, "%s", (input)) != EOF) {
    printf("work \n");
    //palindrome section start
    printf(input);
    unsigned int palindromeLength = (unsigned int) (strlen( input )/2);
    char front[palindromeLength + 1];
    char back[palindromeLength + 1];
    memcpy( front, input, palindromeLength);
    strcpy(inputCopy, input);
    strrev(inputCopy);
    memcpy( back, inputCopy, palindromeLength);
    if (strcmp(front, back) == 1){
      fprintf(pfp, "%s", input);
    };
    //cipher section start
    strcpy(inputCopy, input);
    for (int i = 0; i < (char) (strlen(inputCopy)); i++){
      inputCopy[i] = (char) (inputCopy[i] + 13);
      if (inputCopy[i] > 'z') {
        inputCopy[i] = (char) (inputCopy[i] - 26);
      }
    }
    fprintf(cfp, "%s", inputCopy);
  }
  fclose(ifp);
  fclose(pfp);
  fclose(cfp);
  printf("done \n");
  return 0;
}