C1311213331333132332133313331333133313331333131333132321233132223311   >>    C131121333133313233213331333133313331333133313133313232123313222331   <<    C1311213331333132332133313331333133313331333131333132321233132223313   >>      C1311213331333132332133313331333133313331333131333132321233132223312   >>