Converter

package com.company;

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int m = in.nextInt();
        double mileToKm = m * 1.6;
        double gallonToLiter = 4.54;
        double resultKm = 100*gallonToLiter;
        double result = resultKm / mileToKm;
        System.out.printf("%.0f litres per 100 km",result);

    }
}