C11112331333132311331333132313331333131133131133133313331233121   >>    C1111233133313231133133313231333133313113313113313331333123312   <<    C11112331333132311331333132313331333131133131133133313331233123   >>      C11112331333132311331333132313331333131133131133133313331233122   >>