C11112331312111112111133133313331333133313223313331323132322131   >>    C1111233131211111211113313331333133313331322331333132313232213   <<    C11112331312111112111133133313331333133313223313331323132322133   >>      C11112331312111112111133133313331333133313223313331323132322132   >>