Task: Program Execution
Input (English): d, 1, 4, 6, 9, A
Output (English): [['d', '1', '4', '6', '9'], ['d', '1', '4', '6', 'A'], ['d', '1', '4', '9', 'A'], ['d', '1', '6', '9', 'A'], ['d', '4', '6', '9', 'A'], ['1', '4', '6', '9', 'A']]