n=9;
time=[22, 400, 15105, 15840, 16277, 19240, 26886, 27917, 31114];
passenger=[9, 16, 9, 11, 8, 13, 9, 15, 10];
country=[{52,66,38,96,27,86,35,86,9},{23,56,67,30,21,7,8,85,100,82,14,36,87,47,44,14},{73,5,8,95,51,51,83,58,87},{16,18,76,50,5,76,7,83,72,74,60},{85,51,54,87,99,22,63,1},{93,100,16,88,56,13,95,11,59,74,32,42,34},{96,17,85,27,36,15,84,5,20},{48,5,56,22,26,17,97,57,6,6,60,36,33,46,79},{62,29,83,15,93,46,41,57,69,35}]