var input = require("fs").readFileSync("input.txt").toString();

var points = input.split("\n").filter(a=>a).map(a=>(a.split(",").map(b=>(parseInt(b)))));

var xmin = points.map(a=>(a[0])).sort((a,b)=>(a-b))[0];
var xmax = points.map(a=>(a[0])).sort((a,b)=>(b-a))[0];
var ymin = points.map(a=>(a[1])).sort((a,b)=>(a-b))[0];
var ymax = points.map(a=>(a[1])).sort((a,b)=>(b-a))[0];

var finitePoints = points.filter(p=>(p[0] != xmin && p[0] != xmax && p[1] != ymin && p[1] != ymax));
var infinitePoints = [];

var areas = {};

var man = (xa, ya, xb, yb)=>(Math.abs(xa - xb) + Math.abs(ya - yb));

for(var x = xmin - 200; x <= xmax + 200; x++){
	for(var y = ymin - 200; y <= ymax + 200; y++){
		var mindist = points.map(p=>(man(p[0], p[1], x, y))).sort((a,b)=>(a-b))[0];
		var closest = points.filter(p=>(man(p[0], p[1], x, y) == mindist));
		//if(closest.length == 1 && (finitePoints.indexOf(closest[0]) != -1)){
		if(closest.length == 1){
			if(x == xmin || x == xmax || y == ymin || y == ymax){
				if(infinitePoints.indexOf(closest[0]) == -1){
					infinitePoints.push(closest[0]);
				}
			}
			if(!areas[closest[0]]){
				areas[closest[0]] = 0;
			}
			areas[closest[0]]++;
		}
	}
}

for(var point of infinitePoints){
	delete areas[point];
}


console.log(areas);
console.log(infinitePoints);
console.log(xmin, xmax, ymin, ymax);
console.log(Object.values(areas));
console.log(Math.max.apply(null, Object.values(areas)));