Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
How many Podiums have a Class of 250cc, and an F laps of 0?

### Inputs:
table_name: table, columns: ['Year', 'Class', 'Team', 'Bike', 'Races', 'Wins', 'Podiums', 'Poles', 'F. laps', 'Points']

### Response:
SELECT SUM Podiums FROM table WHERE Class = 250cc AND F. laps = 0