Task: Program Execution
Input (English): 2, 5, 3, 8, 1, 8
Output (English): [['2', '5', '3', '8', '1'], ['2', '5', '3', '8', '8'], ['2', '5', '3', '1', '8'], ['2', '5', '8', '1', '8'], ['2', '3', '8', '1', '8'], ['5', '3', '8', '1', '8']]