C1111233131211111211113313331333133313331312331333133112312111133133313332131   >>    C111123313121111121111331333133313331333131233133313311231211113313331333213   <<    C1111233131211111211113313331333133313331312331333133112312111133133313332133   >>      C1111233131211111211113313331333133313331312331333133112312111133133313332132   >>