C1111133313331323223313331333133313331333131211113313331322331333132212231   >>    C111113331333132322331333133313331333133313121111331333132233133313221223   <<    C1111133313331323223313331333133313331333131211113313331322331333132212233   >>      C1111133313331323223313331333133313331333131211113313331322331333132212232   >>