#include<bits/stdc++.h>
using namespace std;
int main(){
	int monkey,apple;
	long long int sum;
	cin>>monkey>>apple;
	sum=pow(monkey,monkey+1)-(monkey-1)*apple;
	cout<<sum<<endl;
    return 0;
}
/**************************************************************
	Problem: 1851
	User: admin
	Language: C++
	Result: Accepted
	Time:52 ms
	Memory:2324 kb
****************************************************************/