C13223313311212111133133313331333133313232233133313121111133313233113231123311   >>    C1322331331121211113313331333133313331323223313331312111113331323311323112331   <<    C13223313311212111133133313331333133313232233133313121111133313233113231123313   >>      C13223313311212111133133313331333133313232233133313121111133313233113231123312   >>