C312312111133131212111133133313331323133313233121111133313113322333132221   >>    C31231211113313121211113313331333132313331323312111113331311332233313222   <<    C312312111133131212111133133313331323133313233121111133313113322333132223   >>      C312312111133131212111133133313331323133313233121111133313113322333132222   >>