C111112111133131121133133313331333133313331312111133133313331233132212321   >>    C11111211113313112113313331333133313331333131211113313331333123313221232   <<    C111112111133131121133133313331333133313331312111133133313331233132212323   >>      C111112111133131121133133313331333133313331312111133133313331233132212322   >>