C11112331333132311331333132313331333131133131133133313233213321   >>    C1111233133313231133133313231333133313113313113313331323321332   <<    C11112331333132311331333132313331333131133131133133313233213323   >>      C11112331333132311331333132313331333131133131133133313233213322   >>