public class Antiprime {

    static int countDivisors(int n) {
        if (n < 2) return 1;
        int count = 2; // 1 and n
        for (int i = 2; i <= n/2; ++i) {
            if (n%i == 0) ++count;
        }
        return count;
    }

    public static void main(String[] args) {
        int maxDiv = 0, count = 0;
        System.out.println("The first 20 anti-primes are:");
        for (int n = 1; count < 20; ++n) {
            int d = countDivisors(n);
            if (d > maxDiv) {
                System.out.printf("%d ", n);
                maxDiv = d;
                count++;
            }
        }
        System.out.println();
    }
}