public class Main {
public static void main(String[] args) {
 int a[]={2,3,5};
 System.out.println(sumOfElementsWrtIndices(a));
 }
public static int sumOfElementsWrtIndices(int[] a) {
 int s=0;
 for(int i=0;i<a.length;i++)
  s+=(Math.pow(a[i], i));
 return s;
}
}