How many manufacturing facilities in North America are both Food Care and Product Care?
{"North America": {"Number of Manufacturing Facilities": 44, "Food Care Manufacturing Facilities": 10, "Product Care Manufacturing Facilities": 37}, "Europe, Middle East and Africa (\"EMEA\")": {"Number of Manufacturing Facilities": 29, "Food Care Manufacturing Facilities": 11, "Product Care Manufacturing Facilities": 24}, "South America": {"Number of Manufacturing Facilities": 6, "Food Care Manufacturing Facilities": 6, "Product Care Manufacturing Facilities": 1}, "Asia, Australia and New Zealand (\"APAC\")": {"Number of Manufacturing Facilities": 28, "Food Care Manufacturing Facilities": 9, "Product Care Manufacturing Facilities": 24}, "Total": {"Number of Manufacturing Facilities": 107, "Food Care Manufacturing Facilities": 36, "Product Care Manufacturing Facilities": 86}}
north_america_food_care_manufacturing_facilities = df["North America"]["Food Care Manufacturing Facilities"]
north_america_product_care_manufacturing_facilities = df["North America"]["Product Care Manufacturing Facilities"]
north_america_number_of_manufacturing_facilities = df["North America"]["Number of Manufacturing Facilities"]
answer = (north_america_food_care_manufacturing_facilities + north_america_product_care_manufacturing_facilities) - north_america_number_of_manufacturing_facilities