Mother Dairy and Amul Milk follow the mixed layout plan, which combines elements from various types of layouts to meet the diverse needs of product categories and customer flow. This layout is highly adaptable, offering flexibility in how products are arranged and accessed by customers.
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.