C132233133112121111331333133313331333132332121211113313231121132212331   >>    C13223313311212111133133313331333133313233212121111331323112113221233   <<    C132233133112121111331333133313331333132332121211113313231121132212333   >>      C132233133112121111331333133313331333132332121211113313231121132212332   >>