Losing Your Head over Chess

The game of chess is generally believed to have been invented in India in the sixth century for a ruling king by one of his subjects. The king was supposedly very delighted with the game and asked the subject what he wanted in return. The subject, being clever, asked for one grain of wheat on the fi rst square, two grains of wheat on the second square, four grains of wheat on the third square, and so forth, doubling the amount on each next square. The king thought that this was a modest reward for such an invention. However, the total amount of wheat would have been more than 1,000 times the current world production. Develop and test a Python program that calculates how much wheat this would be in pounds, using the fact that a grain of wheat weighs approximately 1/7,000 of a pound.