C13223313311212111133133313331333133313233121333133313331333232233132313111   >>    C1322331331121211113313331333133313331323312133313331333133323223313231311   <<    C13223313311212111133133313331333133313233121333133313331333232233132313113   >>      C13223313311212111133133313331333133313233121333133313331333232233132313112   >>