Task: Program Execution
Input (English): 6, W, 3, 7, q, z
Output (English): [['6', 'W', '3', '7', 'q'], ['6', 'W', '3', '7', 'z'], ['6', 'W', '3', 'q', 'z'], ['6', 'W', '7', 'q', 'z'], ['6', '3', '7', 'q', 'z'], ['W', '3', '7', 'q', 'z']]