C2122121212121133132213231313231313231323223313231322331323132313123121211   >>    C212212121212113313221323131323131323132322331323132233132313231312312121   <<    C2122121212121133132213231313231313231323223313231322331323132313123121213   >>      C2122121212121133132213231313231313231323223313231322331323132313123121212   >>