C312312111133131212111133133313331323133313233121111331322133322121   >>    C31231211113313121211113313331333132313331323312111133132213332212   <<    C312312111133131212111133133313331323133313233121111331322133322123   >>      C312312111133131212111133133313331323133313233121111331322133322122   >>