Dear Hiring Manager.
How are you?
Hoping for your good health and your loved ones.
Thank you for your project.
I've just checked your job description carefully.
I have more than 6 years of rich experience in C and C++
I am ready to start your work.
If you hire me, I will deliver you the best and quality work within your given timeframe with 100% accuracy.
I will do best for you.
Looking forward to your response with a ray of hope.
Thank you.