C2122121212121133132213231313231323131323223313231322331313231232311   >>    C212212121212113313221323131323132313132322331323132233131323123231   <<    C2122121212121133132213231313231323131323223313231322331313231232313   >>      C2122121212121133132213231313231323131323223313231322331313231232312   >>