C11112331333132311331333132313331333131133132323213231333132313331333122211   >>    C1111233133313231133133313231333133313113313232321323133313231333133312221   <<    C11112331333132311331333132313331333131133132323213231333132313331333122213   >>      C11112331333132311331333132313331333131133132323213231333132313331333122212   >>