int     my_strlen(char *str)
{
  int   nb;

  nb = 0;
  while (str[nb] != '\0')
    {
      nb = nb + 1;
    }
  return nb;
}

int     my_putstr(char *str)
{
  int   nb;

  nb = 0;
  while (str[nb] != 0)
    {
      my_putchar(str[nb]);
      nb = nb + 1;
    }
}

char    *my_evil_str(char *str)
{
  int   start;
  int   max;
  int   mid;
  char  save;

  start = 0;
  max = my_strlen(str);
  mid = max / 2;
  max = max - 1;
  while (start < mid)
    {
      save = str[start];
      str[start] = str[max];
      str[max] = save;
      start = start + 1;
      max = max  - 1;
    }
}