C11112331333132311331333132313331333131133131133133313332231211   >>    C1111233133313231133133313231333133313113313113313331333223121   <<    C11112331333132311331333132313331333131133131133133313332231213   >>      C11112331333132311331333132313331333131133131133133313332231212   >>