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:
[128, 249, 389, 83, 380, 314, 51, 289, 383, 247, 133, 336, 391, 41, 312, 497, 306, 349, 255, 488]
answer:
[128, 249, 389, 83, 380, 314, 51, 289, 383, 247, 133, 336, 391, 497, 312, 41, 306, 349, 255, 488]


question:
[427, 96, 142, 132, 231, 208, 368, 234, 238, 157, 365, 428, 149, 429, 337, 206, 260, 436, 194, 424]
answer:
[427, 436, 142, 132, 231, 208, 368, 234, 238, 157, 365, 428, 149, 429, 337, 206, 260, 96, 194, 424]


question:
[48, 373, 251, 432, 93, 83, 294, 360, 168, 78, 239, 107, 293, 396, 494, 171, 282, 120, 473, 474]
answer:

[494, 373, 251, 432, 93, 83, 294, 360, 168, 78, 239, 107, 293, 396, 48, 171, 282, 120, 473, 474]