C11112331312111112111133133313331333131133132313331323231232131   >>    C1111233131211111211113313331333133313113313231333132323123213   <<    C11112331312111112111133133313331333131133132313331323231232133   >>      C11112331312111112111133133313331333131133132313331323231232132   >>