import Foundation

func readInts () -> [Int]{
   return readLine()!.split(separator: " ").map { Int($0)! }
}

func main(){
    let xy = readInts()
    for i in 1...xy[0] {
        if i*2 + (xy[0]-i)*4 == xy[1]{
            print("Yes")
            return
        }
    }
    print("No")
}

main()
