C132233133112121111331333133313331323132313233313331333132222233232212311   >>    C13223313311212111133133313331333132313231323331333133313222223323221231   <<    C132233133112121111331333133313331323132313233313331333132222233232212313   >>      C132233133112121111331333133313331323132313233313331333132222233232212312   >>