A guy named Thomas loves to listen to music through special headphones. With his headphones, he almost never parted. Today in the game Headphone Rush your hero has a chance to upgrade them, and you will help him in this. In front of you, your old-style headphones will be visible on the screen, which will slide over the road surface gradually picking up speed. Look carefully at the screen. Before you on the screen there will be fields on which plus or minus numbers will be written. They mean how long you can upgrade your headphones or, on the contrary, lose their upgrade. Your task is to make sure that your hero gets the coolest and most modern headphones to the finish line.