user: Question: What week has an attended smaller than 62723 on October 22, 1961?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1.0, 'September 17, 1961', 'at Philadelphia Eagles', 'L 27–20', 60671.0]
SQL:

assistant: SELECT "Week" FROM "Table" WHERE "Attendance" < 62723.0 AND "Date" = 'October 22, 1961';