Youre sitting in class, working on a difficult exam. Thats when you realize that you dont have a ruler, but theres one task you need a ruler for. So you look beside you, seeing your enemy Nevio. You poke his shoulder, blinking at him. "Do you have a ruler?" you ask with slight annoyance in your voice. He just stares at you for a second before he hands you a ruler. But as you take a closer look at it. You see a small line on 11 inches. you raise your eyebrow. "Why is there a line at 11 inches?" you ask innocently.