user: Question: What sum of Attendance has a Week smaller than 10, and a Result of L 30-21?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1.0, 'September 15, 1939', 'at Chicago Bears', 'L 30-21', 10000.0]
SQL:

assistant: SELECT SUM("Attendance") FROM "Table" WHERE "Week" < 10.0 AND "Result" = 'L 30-21';