C13223313311212111133133313331333131212111113331333132332111133132232221   >>    C1322331331121211113313331333133313121211111333133313233211113313223222   <<    C13223313311212111133133313331333131212111113331333132332111133132232223   >>      C13223313311212111133133313331333131212111113331333132332111133132232222   >>