C11112331312111112111133133313331333133313331333133313331333132233132313113131   >>    C1111233131211111211113313331333133313331333133313331333133313223313231311313   <<    C11112331312111112111133133313331333133313331333133313331333132233132313113133   >>      C11112331312111112111133133313331333133313331333133313331333132233132313113132   >>