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           Rust Programming Language- File Handling
           
Assignment:
Write a Rust program to do the following steps in order:

1.Create a file named notes.txt
2.Write the below text into the file:
	Rust is fast.
	Rust ensures memory safety.
3. Reopen the same file in append mode and add one more line:
	Learning Rust is fun!
4. Read back the entire contents of the file and print them on the console

