C111112111133131121133133313331333133313331323133313331333133313112132313233121   >>    C11111211113313112113313331333133313331333132313331333133313331311213231323312   <<    C111112111133131121133133313331333133313331323133313331333133313112132313233123   >>      C111112111133131121133133313331333133313331323133313331333133313112132313233122   >>