C3123223313331322121111331333132313331323331323331323133313232213233311   >>    C312322331333132212111133133313231333132333132333132313331323221323331   <<    C3123223313331322121111331333132313331323331323331323133313232213233313   >>      C3123223313331322121111331333132313331323331323331323133313232213233312   >>