Task: Program Execution
Input (English): 6, 4, 5, z, Y, y, a
Output (English): [['6', '4', '5', 'z', 'Y', 'y'], ['6', '4', '5', 'z', 'Y', 'a'], ['6', '4', '5', 'z', 'y', 'a'], ['6', '4', '5', 'Y', 'y', 'a'], ['6', '4', 'z', 'Y', 'y', 'a'], ['6', '5', 'z', 'Y', 'y', 'a'], ['4', '5', 'z', 'Y', 'y', 'a']]