C11112331333132311331333132313331333131133131133132313331333211121   >>    C1111233133313231133133313231333133313113313113313231333133321112   <<    C11112331333132311331333132313331333131133131133132313331333211123   >>      C11112331333132311331333132313331333131133131133132313331333211122   >>