Task: Program Execution
Input (English): r, b, 5, 7, 6, y, A
Output (English): [['r', 'b', '5', '7', '6', 'y'], ['r', 'b', '5', '7', '6', 'A'], ['r', 'b', '5', '7', 'y', 'A'], ['r', 'b', '5', '6', 'y', 'A'], ['r', 'b', '7', '6', 'y', 'A'], ['r', '5', '7', '6', 'y', 'A'], ['b', '5', '7', '6', 'y', 'A']]