C1231321123223331211111131211113313331333133311311333213112123321   >>    C123132112322333121111113121111331333133313331131133321311212332   <<    C1231321123223331211111131211113313331333133311311333213112123323   >>      C1231321123223331211111131211113313331333133311311333213112123322   >>