C1311213331333132332133313331333133313331333132313331311223312111113311221   >>    C131121333133313233213331333133313331333133313231333131122331211111331122   <<    C1311213331333132332133313331333133313331333132313331311223312111113311223   >>      C1311213331333132332133313331333133313331333132313331311223312111113311222   >>