Task: Program Execution
Input (English): 9, P, R, 6, S
Output (English): [['9', 'P', 'R', '6'], ['9', 'P', 'R', 'S'], ['9', 'P', '6', 'S'], ['9', 'R', '6', 'S'], ['P', 'R', '6', 'S']]