C11112331312111112111133133313331333131133132313331133133313231321123221   >>    C1111233131211111211113313331333133313113313231333113313331323132112322   <<    C11112331312111112111133133313331333131133132313331133133313231321123223   >>      C11112331312111112111133133313331333131133132313331133133313231321123222   >>