C11112331312111112111133133313331333132112312111113331333132313331323112121   >>    C1111233131211111211113313331333133313211231211111333133313231333132311212   <<    C11112331312111112111133133313331333132112312111113331333132313331323112123   >>      C11112331312111112111133133313331333132112312111113331333132313331323112122   >>