/*If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. 
 * The sum of these multiples is 23.
 * Find the sum of all the multiples of 3 or 5 below 1000.
 */

public class Problem1 {

	public static void main( String[] args ) {
		int sumHolder = 0;
		int i = 2;
		while( i < 1000 ) {
			if( i%3 == 0 || i%5 == 0 ) {
				sumHolder = sumHolder + i;
			}
			i++;
		}
		System.out.println( sumHolder );
	}
}