C11112331333132311331333132313331333131133131133132313331333313232311   >>    C1111233133313231133133313231333133313113313113313231333133331323231   <<    C11112331333132311331333132313331333131133131133132313331333313232313   >>      C11112331333132311331333132313331333131133131133132313331333313232312   >>