Task: Program Execution
Input (English): 7, I, 9, 3, s, p, 4
Output (English): [['7', 'I', '9', '3', 's', 'p'], ['7', 'I', '9', '3', 's', '4'], ['7', 'I', '9', '3', 'p', '4'], ['7', 'I', '9', 's', 'p', '4'], ['7', 'I', '3', 's', 'p', '4'], ['7', '9', '3', 's', 'p', '4'], ['I', '9', '3', 's', 'p', '4']]