Stains can often be identified by their color and smell. For example, food stains like ketchup or curry have distinct colors and smells that can help determine their source. The combination of color and odor is often a key indicator in identifying stains.
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.