C13223313311212111133133313331333133313233121333133313332211321   >>    C1322331331121211113313331333133313331323312133313331333221132   <<    C13223313311212111133133313331333133313233121333133313332211323   >>      C13223313311212111133133313331333133313233121333133313332211322   >>