C13223313311212111133133313331333131212111113331333132322121121211   >>    C1322331331121211113313331333133313121211111333133313232212112121   <<    C13223313311212111133133313331333131212111113331333132322121121213   >>      C13223313311212111133133313331333131212111113331333132322121121212   >>