1. Vitamin A is found in foods like carrots and papaya.
2. Protein is found in foods like peanuts and soybeans.
3. Calcium is found in foods like milk and green leafy vegetables.
4. Vitamin C is found in fruits like guava and lemon.
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.