C3123121111331312121111331333132313331333133313331333112121111132232321   >>    C312312111133131212111133133313231333133313331333133311212111113223232   <<    C3123121111331312121111331333132313331333133313331333112121111132232323   >>      C3123121111331312121111331333132313331333133313331333112121111132232322   >>