C312312111111331312111133133313231333131133132231333133313331331123122332131   >>    C31231211111133131211113313331323133313113313223133313331333133112312233213   <<    C312312111111331312111133133313231333131133132231333133313331331123122332133   >>      C312312111111331312111133133313231333131133132231333133313331331123122332132   >>