// 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.
// 
// Correct Answer: 233168

sum <- 0;
i <- 0;
loop i < 1_000; i = i + 1 {
    if i % 3 == 0 | i % 5 == 0 {
        sum = sum + i;
    }
}

print sum;