#include<iostream>
using namespace std;
int main(){
	long long x = 0,n = 0;
	cin >> x >> n;
	int sum = 1 + x;
	for(int i = 2;i <= n;i++){
		sum = sum + sum * x;
	}
	cout << sum << endl;
	return 0;
}

哪里错了啊