C11112331312111112111133133313331333132323133313331333133321133222112322131   >>    C1111233131211111211113313331333133313232313331333133313332113322211232213   <<    C11112331312111112111133133313331333132323133313331333133321133222112322133   >>      C11112331312111112111133133313331333132323133313331333133321133222112322132   >>