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

int main()
{
 char ftext[100], otext[100], store;
 int i, a, b;

 printf("Please enter the text to be flipped: ");
 gets(ftext);
 for(i = 0; ftext[i]; i++) /* Converts ftext to lower case before it is coppied to otext*/
  {
   ftext[i] = tolower(ftext[i]);
  }

  strcpy(otext, ftext); /* coppies ftext to otext */

  a = 0; /* sets value of a to 0 */
  b = strlen(ftext) - 1; /* sets value of b to the length of ftext -1 */

   while (a < b) /* function to flip the text around */
    {
     if ((ftext[a] > 96) && (ftext[b] > 96))
      {
        store = ftext[a];
        ftext[a] = ftext[b];
        ftext[b] = store;
        a++; /*incriment a*/
        b--; /*incriment b*/
      }
     else if ((ftext[a] <= 96) && (ftext[a] == ' ') && (ftext[b] > 96))
      {
        store = ftext[a];
        ftext[a] = ftext[b];
        ftext[b] = store;
        a++; /*incriment a*/
        b--; /*incriment b*/
      }
     else if ((ftext[a] > 96) && (ftext[b] <= 96) && (ftext[b] == ' '))
      {
        store = ftext[a];
        ftext[a] = ftext[b];
        ftext[b] = store;
        a++; /*incriment a*/
        b--; /*incriment b*/
      }
     else if ((ftext[a] > 96) && (ftext[b] <= 96) && (ftext[b] != ' '))
      {
        b--; /*incriment b*/
      }
     else if ((ftext[a] <= 96) && (ftext[b] <= 96)  && (ftext[a] != ' ') && (ftext[b] != ' '))
      {
        a++; /*incriment a*/
        b--; /*incriment b*/
      }
     else if ((ftext[a] == ' ') && (ftext[b] == ' '))
      {
        a++; /*incriment a*/
        b--; /*incriment b*/
      }
     else if ((ftext[a] > 96) && (ftext[b] <= 96)  && (ftext[b] != ' '))
      {
        b--; /*incriment b*/
      }
     else if ((ftext[a] <= 96) && (ftext[b] > 96)  && (ftext[a] != ' '))
      {
        a++; /*incriment a*/
      }
     else
      {
        store = ftext[a];
        ftext[a] = ftext[b];
        ftext[b] = store;
        a++; /*incriment a*/
        b--; /*incriment b*/
      }
    }

 printf("flipped ##%s##\n", ftext);
 printf("Preflip ##%s##\n", otext);
return 0;
}