import java.util.Scanner;

public class SumOfMultiples8July2014 {
	public static void main(String args[])
	throws java.io.IOException{
		System.out.println("You are going to select a range of numbers. " +
				"\nThen select another 2 numbers." +
				"\nThe program will sum up the multiples of these 2 numbers within the range of numbers you have chosen.");
		System.out.println("Press enter to start.");
		char choice = (char)System.in.read();
		int i,j,k,l,m;
		int sum = 0;
		Scanner in = new Scanner(System.in);
		System.out.println("Please enter the lower limit of the range you want to check.");
		j = in.nextInt();
		System.out.println("Please enter the upper limit of the range you want to check.");
		k = in.nextInt();
		System.out.println("Please enter the multiples of a number that you want to be summed.");
		l = in.nextInt();
		System.out.println("Please enter the multiples of another number that you want to be summed");
		m = in.nextInt();
		for (i=j; i<=k; i++){
			if (i%l==0 || i%m==0){
				sum +=i;
			}
		}
		System.out.println("The sum of all multiples of "+l+ " and "+m+" for " +
				"\nnatural numbers between " +j+" and " +k+ " inclusive is " +sum);
	}
}