C11112331333132311331333132313331333131133132223132313231323221   >>    C1111233133313231133133313231333133313113313222313231323132322   <<    C11112331333132311331333132313331333131133132223132313231323223   >>      C11112331333132311331333132313331333131133132223132313231323222   >>