C31231211111133131211113313331333133313332233133313331122112311332211   >>    C3123121111113313121111331333133313331333223313331333112211231133221   <<    C31231211111133131211113313331333133313332233133313331122112311332213   >>      C31231211111133131211113313331333133313332233133313331122112311332212   >>