# your code goes here
x = [1,2,3,4,5]
y = [3,4,5,6,2]
x.sort()
y.sort(reverse=True)
s = [a*b for a,b in zip(x,y)]
print(sum(s))
IyB5b3VyIGNvZGUgZ29lcyBoZXJlCgp4ID0gWzEsMiwzLDQsNV0KCnkgPSBbMyw0LDUsNiwyXQoKeC5zb3J0KCkKeS5zb3J0KHJldmVyc2U9VHJ1ZSkKCnMgPSBbYSpiIGZvciBhLGIgaW4gemlwKHgseSldCgpwcmludChzdW0ocykpCg==