Two containers designed to hold water are side by side, both in the shape of a cylinder. Container A has a diameter of 8 feet and a height of 16 feet. Container B has a diameter of 6 feet and a height of 18 feet. Container A is full of water and the water is pumped into Container B until Containter B is completely full. After the pumping is complete, what is the volume of the empty space inside Container A, to the nearest tenth of a cubic foot?