java

package javaapplication2;

/**
 *
 * @author asrulsibaoel
 */
public class JavaApplication2 {

    private int[] C = {101001};

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        JavaApplication2 coba = new JavaApplication2();
        System.out.println(coba.f2(6));
    }

    private int f2(int n) {
        int p = 1;
        int h = 0;
        for (int i = 0; i < n; i++) {
            h = h + (C[i] - 48) * p;
            p = p * 3;
        }

        return h;
    }

}



//return output -17219