To get Julie and David to stop coming up every day, he agreed to come to dinner a few times.

To his more upset, every day he went to work hard in the field, pickaxe on the shoulder, but the ungrateful crops did not seem to have grown one inch higher, which made him very anxious.

Out every day, but also a lot of trouble, so get hold of this small program, so he automatically a problem, calculate the corresponding answer.