# Arup Guha
# 6/16/2017
# Solution for SI@UCF Python Test #1 Question #3
def main():
# Get user input.
length = int(input("What is the length, in inches, of your box?\n"))
width = int(input("What is the width, in inches, of your box?\n"))
height = int(input("What is the height, in inches, of your box?\n"))
# There are six surfaces, two each with the listed dimensions.
sArea = 2*(length*width+length*height+width*height)
# Output the result.
print("The box's surface area is", sArea , "sq. in.")
main()