C11111333133313232233133313331333132332322121111331333131121121   >>    C1111133313331323223313331333133313233232212111133133313112112   <<    C11111333133313232233133313331333132332322121111331333131121123   >>      C11111333133313232233133313331333132332322121111331333131121122   >>