C1311213331333132332133313331333133313331333132313331333232233112323221   >>    C131121333133313233213331333133313331333133313231333133323223311232322   <<    C1311213331333132332133313331333133313331333132313331333232233112323223   >>      C1311213331333132332133313331333133313331333132313331333232233112323222   >>