C11112331333132311331333133313231333131133131211111333132323323221   >>    C1111233133313231133133313331323133313113313121111133313232332322   <<    C11112331333132311331333133313231333131133131211111333132323323223   >>      C11112331333132311331333133313231333131133131211111333132323323222   >>