C11111333133313232233133313331333132332322121111331311331121321   >>    C1111133313331323223313331333133313233232212111133131133112132   <<    C11111333133313232233133313331333132332322121111331311331121323   >>      C11111333133313232233133313331333132332322121111331311331121322   >>