var input = require("fs").readFileSync("input.txt").toString().replace(/\r/g, "");
var devices = input.split("\n").filter((line)=>(line.indexOf("/dev/") != -1)).map((line)=>(line.match(/\/dev\/grid\/node-x([0-9]+)-y([0-9]+)[ ]+([0-9]+)T[ ]+([0-9]+)T[ ]+([0-9]+)T[ ]+([0-9]+)%/))).map((match)=>({
	x: parseInt(match[1]),
	y: parseInt(match[2]),
	size: parseInt(match[3]),
	used: parseInt(match[4]),
	available: parseInt(match[5]),
	percentageUsed: parseInt(match[5]),
}));

console.log(devices);
var pairs = [];
for(var dev1 = 0; dev1 < devices.length; dev1++){
	for(var dev2 = 0; dev2 < devices.length; dev2++){
		if(dev1 != dev2){
			if(devices[dev1].used > 0){
				if(devices[dev2].available >= devices[dev1].used){
					pairs.push([dev1, dev2]);
				}
			}
		}
	}
}
console.log(pairs.length);