C23221211113313331233133313331312111133133313331333133112211211   >>    C2322121111331333123313331333131211113313331333133313311221121   <<    C23221211113313331233133313331312111133133313331333133112211213   >>      C23221211113313331233133313331312111133133313331333133112211212   >>