What is the value of contractual obligations for purchase obligations with payment due period of a maximum of 3 years?
{"Term Loan and Notes, including interest": {"Total": 4373.3, "Less than 1 year": 3227.0, "1-3 years": 65.0, "3-5 years": 65.0, "More than 5 years": 1016.3}, "Operating lease obligations, net": {"Total": 711.5, "Less than 1 year": 88.7, "1-3 years": 158.0, "3-5 years": 126.9, "More than 5 years": 337.9}, "Purchase obligations": {"Total": 2036.5, "Less than 1 year": 545.0, "1-3 years": 935.8, "3-5 years": 555.7, "More than 5 years": "\u2014"}, "Total": {"Total": 7121.3, "Less than 1 year": 3860.7, "1-3 years": 1158.8, "3-5 years": 747.6, "More than 5 years": 1354.2}}
purchase_obligations_less_than_1_year = df["Purchase obligations"]["Less than 1 year"]
purchase_obligations_13_years = df["Purchase obligations"]["1-3 years"]
answer = purchase_obligations_less_than_1_year + purchase_obligations_13_years