C11111333133313232233133313331333133313331311331333132233132332321   >>    C1111133313331323223313331333133313331333131133133313223313233232   <<    C11111333133313232233133313331333133313331311331333132233132332323   >>      C11111333133313232233133313331333133313331311331333132233132332322   >>