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

### Instruction:
Which issue was the Spoofed title Route 67 for which Mort Drucker was the artist?

### Inputs:
table_name: table, columns: ['Spoofed Title', 'Writer', 'Artist', 'Issue', 'Date']

### Response:
SELECT SUM Issue FROM table WHERE Artist = mort drucker AND Spoofed Title = route 67