C111112111133131121133133313331333133313331323133313331333133313231121321311   >>    C11111211113313112113313331333133313331333132313331333133313331323112132131   <<    C111112111133131121133133313331333133313331323133313331333133313231121321313   >>      C111112111133131121133133313331333133313331323133313331333133313231121321312   >>