public class Start {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		Object shramba[] = new Object[37];
		for (int i = 0; i < 10; i++) {
			A tmp = new A();
			shramba[i] = tmp;
		}
		for (int i = 10; i < 37; i++) {
			B tmp = new B();
			shramba[i] = tmp;
		}
		((A)shramba[0]).a = 17;
		((B)shramba[30]).c = "NEKAJ";
		for (int i = 0; i < 37; i++) {
			if(i < 15){
				A tmp = (A)shramba[i];
				System.out.println(tmp.a);
			}
			else{
				B tmp = (B)shramba[i];
				System.out.println(tmp.c);
			}
		}
	}

}