C11111333133313232233133313331333132332322121111331333131323132313111221   >>    C1111133313331323223313331333133313233232212111133133313132313231311122   <<    C11111333133313232233133313331333132332322121111331333131323132313111223   >>      C11111333133313232233133313331333132332322121111331333131323132313111222   >>