user: Question: When the round of 32 was N/A and quarterfinal was Did not advance, what was the round of 16?
Columns: ['Athlete', 'Event', 'Round of 32', 'Round of 16', 'Quarterfinal', 'Semifinal', 'Final']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Akbar Ahadi', 'Bantamweight –54 kg', 'Sheikhan W 15–6', 'Tulyakov L 4–12', 'Did not advance', 'Did not advance', 'Did not advance']
SQL:

assistant: SELECT "Round of 16" FROM "Table" WHERE "Quarterfinal" = 'Did not advance' AND "Round of 32" = 'N/A';