C2122121212121133132213231313231313231323223313231322331323132313232213231311   >>    C212212121212113313221323131323131323132322331323132233132313231323221323131   <<    C2122121212121133132213231313231313231323223313231322331323132313232213231313   >>      C2122121212121133132213231313231313231323223313231322331323132313232213231312   >>