Все работает
//List<int> searches = new List<int>() {1124,1155,1590,813,2671,7327,6795,6163,5476,1582,1714,291,1292,1472,922,452,891,226,1591,1093,805,295,361,813,1019,-107,136,114,452,-619}; //test data
//List<string> searches = new List<string>() {project.Variables["amazonSearches"].Value}...