user: Question: What's the week when the result was w 38-24 and attendance was less than 43449?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1.0, 'September 16, 1962', 'Pittsburgh Steelers', 'W 45-7', 46641.0]
SQL:

assistant: SELECT "Week" FROM "Table" WHERE "Result" = 'w 38-24' AND "Attendance" < 43449.0;