"You know what?" Angel said, "There is a love-letter from me embeded on the lawn. And if you can find it, it's for you~"
"How can I find it on such a big lawn?"
"I will show you a hint: start from that tree which is in center of this lawn, and run directly to (X,Y) point. Please memorize the distance you'v passed. Then turn left with a angle A degree, and go ahead for k times of the length you'v passed in the first step. k is a real number from 0 to 1. When you arrive, repeat to turn left, and run for k times as far as the length of the last step. After many many times, you will reach a place, where I embed my letter..."
Of cause, Gardon wouldn't follow her hint simply. He just run there directly. Can you do it?