import java.util.*

fun main(args: Array<String>) {
    val sc = Scanner(System.`in`)

    var array = arrayOfNulls<Int>(3)

    for (i in array.indices) {
        array[i]= sc.nextInt()
    }

    if (array[0]!! + array[1]!! == array[2]!! ||
            array[0]!! + array[2]!! == array[1]!! ||
            array[1]!! + array[2]!! == array[0]!!) {
        println("Yes")
    } else {
        println("No")
    }
}