package main

import ("fmt")

func main() {
  var a int
  var b int
  fmt.Scanf("%d %d",&a,&b)
  if (a/b == 2) {
    fmt.Println("Yes")
  } else if (b/a == 2) {
    fmt.Println("Yes")
  } else {
    fmt.Println("No")
  }
}