Task: Program Execution
Input (English): c, 7, 0, b, 6, 6
Output (English): [['c', '7', '0', 'b', '6'], ['c', '7', '0', 'b', '6'], ['c', '7', '0', '6', '6'], ['c', '7', 'b', '6', '6'], ['c', '0', 'b', '6', '6'], ['7', '0', 'b', '6', '6']]