public static void main(String[] args) {
		int sum = 0;
		int top = 1000;
		for (int i = 1; i < top; i++) {
			if (i%3==0||i%5==0){
				sum+=i;
			}
		}
		System.out.println("sum of all the multiples of 1 to " + top + " is: " + sum);
	}