C312312111111331312111133133313331322331312111112111133132233133322231   >>    C31231211111133131211113313331333132233131211111211113313223313332223   <<    C312312111111331312111133133313331322331312111112111133132233133322233   >>      C312312111111331312111133133313331322331312111112111133132233133322232   >>