Write a program to write those lines which have the character 'a' from one text file to another text file.

Note:
 - Open widows D drive and open book.txt file and
     type the number of lines

fin=open("D:\\book.txt","r")
fout=open("D:\\story.txt","a")
s=fin.readlines()
for j in s:
   if 'a' in j:
      fout.write(j)
fout.close()
fin.close()

Output:
**Write contents of book.txt and story.txt

-  After executing above program open story.txt file

book.txt file
jkjhkll aa
kllkklk
twinkla jsad

story.txt

jkjhkll aa
twinkla jsad