C2122121212121133132213231313231323131323223313231322331323132212311   >>    C212212121212113313221323131323132313132322331323132233132313221231   <<    C2122121212121133132213231313231323131323223313231322331323132212313   >>      C2122121212121133132213231313231323131323223313231322331323132212312   >>