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

### Instruction:
How many were penanced with 0 executions in effigie for a total of 21?

### Inputs:
table_name: table, columns: ['Tribunal', 'Number of autos da fé with known sentences', 'Executions in persona', 'Executions in effigie', 'Penanced', 'Total']

### Response:
SELECT Penanced FROM table WHERE Executions in effigie = 0 AND Total = 21