C1231321123223331211111131211113313331333132212222311331311222331   >>    C123132112322333121111113121111331333133313221222231133131122233   <<    C1231321123223331211111131211113313331333132212222311331311222333   >>      C1231321123223331211111131211113313331333132212222311331311222332   >>