C312312111133131212111133133313331323133313233121111331322132233133321211   >>    C31231211113313121211113313331333132313331323312111133132213223313332121   <<    C312312111133131212111133133313331323133313233121111331322132233133321213   >>      C312312111133131212111133133313331323133313233121111331322132233133321212   >>