Their are 16 logs the stove burn in 8hours
From the instructions i gather it might be like this
The first number is x
the second number is 2x-4
combine both numbers = 80
x+2x-4=80
3x-4=80
3x=84
x=28
one number is 28 and the other is 52.
12.2
((12) - (0))^2 + ((3) - (5))^2