Task: Program Execution
Input (English): M, 9, 0, 9, 1, F, d
Output (English): [['M', '9', '0', '9', '1', 'F'], ['M', '9', '0', '9', '1', 'd'], ['M', '9', '0', '9', 'F', 'd'], ['M', '9', '0', '1', 'F', 'd'], ['M', '9', '9', '1', 'F', 'd'], ['M', '0', '9', '1', 'F', 'd'], ['9', '0', '9', '1', 'F', 'd']]