Task: Program Execution
Input (English): 9, 0, M, H, U, r
Output (English): [['9', '0', 'M', 'H', 'U'], ['9', '0', 'M', 'H', 'r'], ['9', '0', 'M', 'U', 'r'], ['9', '0', 'H', 'U', 'r'], ['9', 'M', 'H', 'U', 'r'], ['0', 'M', 'H', 'U', 'r']]