Task: Program Execution
Input (English): i, 9, z, 0, I, 4, 6
Output (English): [['i', '9', 'z', '0', 'I', '4'], ['i', '9', 'z', '0', 'I', '6'], ['i', '9', 'z', '0', '4', '6'], ['i', '9', 'z', 'I', '4', '6'], ['i', '9', '0', 'I', '4', '6'], ['i', 'z', '0', 'I', '4', '6'], ['9', 'z', '0', 'I', '4', '6']]