C3123121111331312121111331333132313331333133313223313231323211311   >>    C312312111133131212111133133313231333133313331322331323132321131   <<    C3123121111331312121111331333132313331333133313223313231323211313   >>      C3123121111331312121111331333132313331333133313223313231323211312   >>