C132233133112121111331333133313231333133313231211113313112123233311   >>    C13223313311212111133133313331323133313331323121111331311212323331   <<    C132233133112121111331333133313231333133313231211113313112123233313   >>      C132233133112121111331333133313231333133313231211113313112123233312   >>