C3123121111331312121111331333132313331323113313331333132213231323221231   >>    C312312111133131212111133133313231333132311331333133313221323132322123   <<    C3123121111331312121111331333132313331323113313331333132213231323221233   >>      C3123121111331312121111331333132313331323113313331333132213231323221232   >>