C312312111111331312111133133313331322331333133313121111331333112131221   >>    C31231211111133131211113313331333132233133313331312111133133311213122   <<    C312312111111331312111133133313331322331333133313121111331333112131223   >>      C312312111111331312111133133313331322331333133313121111331333112131222   >>