d=7;
n=20;
public_loc=[|121,107|
13,122|
41,72|
17,35|
51,41|
125,111|
18,34|
2,89|
99,87|
86,14|
95,82|
117,124|
67,94|
63,2|
38,123|
63,31|
103,76|
25,16|
21,42|
51,72|];
public_num=[974751,645237,680781,685372,164232,472164,167594,903993,996436,460552,262254,719761,877444,432025,217265,426137,856300,453330,148464,108527];