package main
 
import (
	"bufio"
	"fmt"
	"os"
	"strconv"
)
 
var sc = bufio.NewScanner(os.Stdin)
 
func nextInt() int {
	sc.Scan()
	i, e := strconv.Atoi(sc.Text())
	if e != nil {
		panic(e)
	}
	return i
}
 
func main() {
	var ans string
        var x  := make([]int,3)
	sc.Split(bufio.ScanWords)
	for i := 0; i < 3; i++ {
		x  = append ( x, nextInt() )
	}
	if x[0] = x[1]+x[2] || x[1] = x[0]+x[2] || x[2] = x[0]+x[1] {
		ans = "Yes"
	} else {
		ans = "No"
	}
	fmt.Println(ans)
}