a, b, c = map(int, input().split())

num_lists = [a, b, c]
maximum = a
if a == b or a == c or b == c:
  ans = 'No'
else:
  if maximum < b:
    maximum = b
  if maximum < c:
    maximum = c

num_lists.remove(maximum)
if num_lists[0] + num_lists[1] == maximum:
  ans ='Yes'

print(ans)