What is the sum of Inter-segment eliminations in 2018 and 2019?
{"Bell Wireless": {"2019": -5300.0, "2018": -5297.0, "$ CHANGE": -3.0, "% CHANGE": -0.1}, "Bell Wireline": {"2019": -6942.0, "2018": -6946.0, "$ CHANGE": 4.0, "% CHANGE": 0.1}, "Bell Media": {"2019": -2367.0, "2018": -2428.0, "$ CHANGE": 61.0, "% CHANGE": 2.5}, "Inter-segment eliminations": {"2019": 751.0, "2018": 738.0, "$ CHANGE": 13.0, "% CHANGE": 1.8}, "Total BCE operating costs": {"2019": -13858.0, "2018": -13933.0, "$ CHANGE": 75.0, "% CHANGE": 0.5}}
inter_segment_eliminations_2019 = df["Inter-segment eliminations"]["2019"]
inter_segment_eliminations_2018 = df["Inter-segment eliminations"]["2018"]
answer = inter_segment_eliminations_2019 + inter_segment_eliminations_2018