C111123313121111121111331333133313331333112221211111133133313232212132231   >>    C11112331312111112111133133313331333133311222121111113313331323221213223   <<    C111123313121111121111331333133313331333112221211111133133313232212132233   >>      C111123313121111121111331333133313331333112221211111133133313232212132232   >>