C23221211113313331233133313331312111133133313331211113313331333133311212121   >>    C2322121111331333123313331333131211113313331333121111331333133313331121212   <<    C23221211113313331233133313331312111133133313331211113313331333133311212123   >>      C23221211113313331233133313331312111133133313331211113313331333133311212122   >>