C132233133112121111331333133313331323221323221211113313223313112121   >>    C13223313311212111133133313331333132322132322121111331322331311212   <<    C132233133112121111331333133313331323221323221211113313223313112123   >>      C132233133112121111331333133313331323221323221211113313223313112122   >>