C312312111133131212111133133313331323133313233121111331333132213123313331323111   >>    C31231211113313121211113313331333132313331323312111133133313221312331333132311   <<    C312312111133131212111133133313331323133313233121111331333132213123313331323113   >>      C312312111133131212111133133313331323133313233121111331333132213123313331323112   >>