Hello dear Vladimir Vladimirovich Putin!How about You? I'm good!
I got the opportunity to write you a letter and I am very pleased.
I have a family of four.It's me,my older sister is named Sasha,she is studying in the Institute I have a younger brother Kirill,who goes to kindergarten.And I have a mom named Irina,she's a soldier.I am very proud of my family,especially my mom.And I love my family very much. Tell me in your letter.
Love,Olya

Я не знаю имен твоей семьи,поэтому я вставила другие имена.

Dear Mr. President Putin,

I am writing to you to tell you a little bit about my family. There are four people in my family, including myself. My name is *вставь свое имя*, I am fourteen years old and I go to school. I have two siblings, an older sister and a younger brother. My sister's name is *вставь сестры имя*, she is *возраст сестра* years old and she is currently studying at the university. My younger brother is only *возраст брата* years old and he still goes to kindergarten. We all live with our mum, her name is *имя мамы* and she is *возраст* years old. She is a military personnel and she is extremely proud to serve our country. We are all very close and always take care of each other. I am blessed with my family and I love them all so much for being so kind, caring and understanding.  

Now, I realise that being the President is a difficult job and you don't have much spare time, so if you do get to read this letter I want you to know that I really appreciate that you managed to spare some time to read this. I would also love to receive a letter from you. Thank you for all the hard work you do for our country and I hope you are well. 

Kind regards, 

*свои имя и фамилью*