C11112331333132311331333132313331333131133131133133312121121131   >>    C1111233133313231133133313231333133313113313113313331212112113   <<    C11112331333132311331333132313331333131133131133133312121121133   >>      C11112331333132311331333132313331333131133131133133312121121132   >>