What is the difference in the total revenue from Access & Aggregation and Traditional & Other Products?
{"Access & Aggregation": {"Network Solutions": 289980, "Services & Support": 58894, "Total": 348874}, "Subscriber Solutions & Experience (1)": {"Network Solutions": 144651, "Services & Support": 8269, "Total": 152920}, "Traditional & Other Products": {"Network Solutions": 20595, "Services & Support": 7672, "Total": 28267}, "Total": {"Network Solutions": 455226, "Services & Support": 74835, "Total": 530061}}
access_aggregation = df["Access & Aggregation"]["Total"]
traditional_other_products = df["Traditional & Other Products"]["Total"]
answer = access_aggregation - traditional_other_products