Task: Program Execution
Input (English): F, 9, m, M, 7, L
Output (English): [['F', '9', 'm', 'M', '7'], ['F', '9', 'm', 'M', 'L'], ['F', '9', 'm', '7', 'L'], ['F', '9', 'M', '7', 'L'], ['F', 'm', 'M', '7', 'L'], ['9', 'm', 'M', '7', 'L']]