C1231321123223331211111131211113313331333132313331333112233232113231231332321   >>    C123132112322333121111113121111331333133313231333133311223323211323123133232   <<    C1231321123223331211111131211113313331333132313331333112233232113231231332323   >>      C1231321123223331211111131211113313331333132313331333112233232113231231332322   >>