Task: Program Execution
Input (English): 6, 9, 9, 0, e, T
Output (English): [['6', '9', '9', '0', 'e'], ['6', '9', '9', '0', 'T'], ['6', '9', '9', 'e', 'T'], ['6', '9', '0', 'e', 'T'], ['6', '9', '0', 'e', 'T'], ['9', '9', '0', 'e', 'T']]