closed_boundary1
 14 2
 525063 4220210
 518285 4239697
 521251 4257066
 572297 4279306
 603010 4255583
 625038 4224870
 635205 4187803
 604704 4154337
 594114 4139298
 568485 4144170
 557682 4153066
 551116 4164927
 546668 4180178
 525063 4220210