C12121212311232322331313232233132333132333132233131323331323131232311   >>    C1212121231123232233131323223313233313233313223313132333132313123231   <<    C12121212311232322331313232233132333132333132233131323331323131232313   >>      C12121212311232322331313232233132333132333132233131323331323131232312   >>