C111112111133131121133133313331333133313121133133313231333133313232321   >>    C11111211113313112113313331333133313331312113313331323133313331323232   <<    C111112111133131121133133313331333133313121133133313231333133313232323   >>      C111112111133131121133133313331333133313121133133313231333133313232322   >>