C11112331333132311331333132313331333131133131133133313311223311   >>    C1111233133313231133133313231333133313113313113313331331122331   <<    C11112331333132311331333132313331333131133131133133313311223313   >>      C11112331333132311331333132313331333131133131133133313311223312   >>