C11112331333132311331333132313331333131133131133133313231133121   >>    C1111233133313231133133313231333133313113313113313331323113312   <<    C11112331333132311331333132313331333131133131133133313231133123   >>      C11112331333132311331333132313331333131133131133133313231133122   >>