function main(input) {
  input=input.trim();
  const a = parseInt(input.split(" ")[0], 10);
  const b = parseInt(input.split(" ")[1], 10);
  const c = parseInt(input.split(" ")[2], 10);
  if(a+b==c||a+c==b||a==b+c){
    console.log("Yes");
  }else{
    console.log("No");
  }



main(require('fs').readFileSync('/dev/stdin', 'utf8'));