招银网络的题，母牛题帮忙看看对不对
import java.util.*;
public class Main {
public static long find(int n) {
if(n == 1) {
return 10;
}
return find(n-1) + find(n-1) * 2 - (n - 1) * 2;
}
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
int n = in.nextInt();
System.out.println(find(n));//n输入100
}
}
