C11112331333132311331333132313331333131133131133132313331323113122321311   >>    C1111233133313231133133313231333133313113313113313231333132311312232131   <<    C11112331333132311331333132313331333131133131133132313331323113122321313   >>      C11112331333132311331333132313331333131133131133132313331323113122321312   >>