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")
    }
}