instruction:
In this task, you are given a list of unique integers you need to swap the positions of maximum and minimum element in the list and return the updated list.
question:
[25, 198, 30, 463, 163, 442, 215, 415, 443, 402, 275, 82, 111, 137, 63, 421, 102, 305, 118, 404]
answer:
[463, 198, 30, 25, 163, 442, 215, 415, 443, 402, 275, 82, 111, 137, 63, 421, 102, 305, 118, 404]

question:
[446, 271, 355, 181, 214, 338, 42, 398, 235, 467, 57, 92, 56, 282, 99, 222, 420, 339, 50, 472]
answer:
[446, 271, 355, 181, 214, 338, 472, 398, 235, 467, 57, 92, 56, 282, 99, 222, 420, 339, 50, 42]

question:
[180, 328, 143, 398, 304, 22, 357, 214, 233, 334, 242, 477, 55, 281, 497, 71, 173, 381, 314, 336]
answer:
[180, 328, 143, 398, 304, 497, 357, 214, 233, 334, 242, 477, 55, 281, 22, 71, 173, 381, 314, 336]