#!/bin/env rdmd
module aoc24_1;

import std.stdio, std.conv, std.algorithm, std.range, std.math, std.parallelism, std.string;

void main(){
	long[] left, right;
	long[long] rightCount;

	foreach(line; stdin.byLine){
		long l = line.parse!long;
		line = line.strip();
		long r = line.parse!long;

		left ~= l;
		right ~= r;

		if(r !in rightCount)
			rightCount[r] = 0;
		rightCount[r]++;
	}

	foreach(x; iota(0, 2).parallel){
		if(x == 0)
			left.sort();
		else
			right.sort();
	}

	foreach(x; iota(0, 2).parallel){
		if(x == 0)
			writeln("Part one ", zip(left, right).map!(x => abs(x[0] - x[1])).reduce!"a+b");
		else
			writeln("Part two ", left.map!(l => rightCount.get(l, 0) * l).reduce!"a+b");
	}
}