user: ### NOW ANSWER:
Question: Which U.S. Hot has 13 as the U.S. R&B?
Columns: ['Year', 'U.S. Hot 100', 'U.S. R&B', 'U.S. Rap', 'Album']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1999.0, '36', '13', '10', 'Chopper City in the Ghetto']
SQL:

assistant: SELECT "U.S. Hot 100" FROM "Table" WHERE "U.S. R&B" = '13';