a, b, c = map(int, raw_input().split())
total = a + b + c
if total % 2 != 0:
  print('No')
else:
  half = total // 2
  if a == half or b == half or c == half or a+b == half or b+c == half or a+c == half:
    print('Yes')
  else:
    print('No')
