C3123213231313231312323132313231333131323223313232213113313233313233232311   >>    C312321323131323131232313231323133313132322331323221311331323331323323231   <<    C3123213231313231312323132313231333131323223313232213113313233313233232313   >>      C3123213231313231312323132313231333131323223313232213113313233313233232312   >>