C1311213331333132332133313331333133313331333133313331321123122321132311   >>    C131121333133313233213331333133313331333133313331333132112312232113231   <<    C1311213331333132332133313331333133313331333133313331321123122321132313   >>      C1311213331333132332133313331333133313331333133313331321123122321132312   >>