#include <iostream>
using namespace std;
int main() {
// your code goes here
int x,n;
cin>>x>>n;
int a=0;
for (int i=0;i<n;i++){
a=x*(1+a);
}
a=a+1;
// 1+x+x*x+x*x*x=1+x(1+x(1+x(1+0)))
cout<<a;
return 0;
}
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