C132233133112121111331333133313331323221323221211113313121111123231323121   >>    C13223313311212111133133313331333132322132322121111331312111112323132312   <<    C132233133112121111331333133313331323221323221211113313121111123231323123   >>      C132233133112121111331333133313331323221323221211113313121111123231323122   >>