def main():
    list = [int(x) for x in input().split()]

    sum = x[0] + x[1] + x[2]
    max = x[0]
    if max <= x[1]:
        max = x[1]
    if max <= x[2]:
        max = x[2]

    if max * 2 == sum:
        print("Yes")
    else:
        print("No")

if __name__ == "__main__":
    main()
