Flowers in reception areas are replaced weekly to maintain freshness and a welcoming environment. It also prevents withering flowers from affecting the ambiance.
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.