C1111133313331323223313331333133313331333131211113313331323132332121   >>    C111113331333132322331333133313331333133313121111331333132313233212   <<    C1111133313331323223313331333133313331333131211113313331323132332123   >>      C1111133313331323223313331333133313331333131211113313331323132332122   >>