n=40;
m=2;
a=[|538,414|
648,613|
57,9|
287,508|
552,559|
960,212|
715,552|
708,893|
302,375|
906,362|
979,541|
897,426|
894,284|
813,232|
75,304|
509,830|
441,857|
936,150|
429,924|
484,224|
175,232|
394,355|
698,957|
304,761|
736,835|
773,331|
773,273|
798,732|
749,152|
429,61|
262,724|
292,408|
39,797|
69,112|
928,939|
977,283|
988,357|
39,30|
923,709|
175,532|];