import (
    "fmt"
    "sort"
)

func main() {
    b := make([]int, 3)
    for i := 0; i < 3; i++ {
        fmt.Scan(&b[i])
    }
    sort.Ints(b)
    if b[2] == b[1]+b[0] {
        fmt.Println("Yes")
    } else {
        fmt.Println("No")
    }
}                             