[Forenspiel] Member vs. Team

import cond.exc.IllegalValueException;
import cond.util.Math;

public class Main {
    private static long start,
                        end,
                        sumOf3,
                        sumOf5,
                        doubles;
    
    public static void main(String[] args) throws IllegalValueException {
        start = System.currentTimeMillis();
        end = 0;
        sumOf3 = 0;
        sumOf5 = 0;
        doubles = 0;
        
        for (long x = 3; x < 1000; x += 3) {
            
            if (x % 3 == 0) sumOf3 += x;
            
        }
        
        for (long x = 5; x < 1000; x += 5) {
            
            if (x % 5 == 0) sumOf5 += x;
            
        }
        
        for (long x = 3; x < 1000; x++) {
            
            if (x % 3 == 0 && x % 5 == 0) doubles += x;
            
        }
        
        System.out.println(Math.subtract(Math.subtract(Math.add(sumOf3, sumOf5), doubles), 233168));
        end = System.currentTimeMillis();
        System.out.println("took " + (double) Math.divide(Math.subtract(end, start), 1000) + " seconds");
        
    }

}