C132233133112121111331333133313231333132333131211111333132323223313232211   >>    C13223313311212111133133313331323133313233313121111133313232322331323221   <<    C132233133112121111331333133313231333132333131211111333132323223313232213   >>      C132233133112121111331333133313231333132333131211111333132323223313232212   >>