Tobacco consumption increases the risk of lung cancer, heart disease, stroke, and respiratory issues. It damages the immune system, affects oral health, accelerates skin aging, and harms blood circulation. Secondhand smoke also poses health risks to non-smokers.
On the day of her examination, Riya sharpened her pencil from both ends as shown below. 
The diameter of the cylindrical and conical part of the pencil is 4.2 mm. If the height of each conical part is 2.8 mm and the length of the entire pencil is 105.6 mm, find the total surface area of the pencil.