Task: Program Execution
Input (English): F, 4, 7, 5, s, K
Output (English): [['F', '4', '7', '5', 's'], ['F', '4', '7', '5', 'K'], ['F', '4', '7', 's', 'K'], ['F', '4', '5', 's', 'K'], ['F', '7', '5', 's', 'K'], ['4', '7', '5', 's', 'K']]