Clock is invented by ancient Arabic engineers and which contributes to build the concept of accurate time for us human beings and even could be essential tool that widely used in industry, business and our routine lives. Nevertheless, the ideology of clock turns out to be quite simply that even make sense to little kids. We could hardly imagine that how do Arabic wisdom come up with such idea to indicate time only by two or three fingers. The other day, Tim are asking Jim and Hysramp to play his newly invented game describe as follow. Tim randomly change the time of his lovely alarm clock then ask Jim and Hysramp to tell the degree between hour finger and minute finger. Jim seems quite gifted playing it while Hysramp does not. When Hysramp fails to answer Tim, Tim smiles to Hysramp, and Hysramp smiles to you, an ace programmer.