<?php
$num100=trim(fgets(STDIN));
$num10=trim(fgets(STDIN));
$sum=100*$num100+$num10*10;
$average=$sum/2;
$ans="No";

for($i=0;$i<=floor($average/100)&&$i<=$num100;$i++){
  if($num10-($average-$i*100)/10>=0){
    $ans="Yes";
    echo $i;
    break;
  }
}
echo $ans;