쎾쓰.js

function p3(a){
	var i=a.length-1;
	var c=0;
	for(;i>=0;i--){
		var d=a[i];
		d=(d<<1)+d+c;
		c=Math.floor(d/100000000);
		a[i]=d%100000000;
	}
	if(c>0)a.unshift(c);
}
var t;
(function(){
	var ProgressBar = require('progress');
	var bar = new ProgressBar(':bar　:percent', { total: 40, complete:"x",incomplete:"p"});
	t=Date.now();
	var y=[3];
	for(var i=1;i<10000;i++){
		p3(y);
		if(i%250==0)bar.tick();
	}
	bar.tick();
	console.log(Date.now()-t);

	var fs=require("fs");
	fs.writeFile("./output.txt",y.join(""),null);
})()