C111112111133131121133133313331333133311221123121111331323232313232211   >>    C11111211113313112113313331333133313331122112312111133132323231323221   <<    C111112111133131121133133313331333133311221123121111331323232313232213   >>      C111112111133131121133133313331333133311221123121111331323232313232212   >>