package main

import (
	"fmt"
	"os"
	"sort"
	"strconv"
	"strings"
)

func main() {

	lines := parse()

	var left = []int{}
	var right = []int{}

	for _, line := range lines {
		nums := strings.Fields(line)

		l, _ := strconv.Atoi(nums[0])
		r, _ := strconv.Atoi(nums[1])
		left = append(left, l)
		right = append(right, r)

	}

	sort.Ints(left)
	sort.Ints(right)

	var sum = 0

	for i := 0; i < len(left); i++ {
		var diff = right[i] - left[i]
		if diff < 0 {
			diff *= -1
		}
		sum += diff
	}

	var similarity = 0

	for i := 0; i < len(left); i++ {
		var count = 0
		for j := 0; j < len(right); j++ {
			if left[i] == right[j] {
				count += 1
			}
		}
		similarity += count * left[i]
	}
	fmt.Println(sum)
	fmt.Println(similarity)

}

func parse() []string {
	filePath := os.Args[1]
	data, _ := os.ReadFile(filePath)
	chunks := strings.Split(string(data), "\n")
	var nonEmpthyChunks = []string{}

	for _, chunk := range chunks {
		if chunk != "" {
			nonEmpthyChunks = append(nonEmpthyChunks, chunk)
		}
	}
	return nonEmpthyChunks
}