C132233133112121111331333133313331323133313233121111331333112211221   >>    C13223313311212111133133313331333132313331323312111133133311221122   <<    C132233133112121111331333133313331323133313233121111331333112211223   >>      C132233133112121111331333133313331323133313233121111331333112211222   >>