#include <bits/stdc++.h>
using namespace std;
long long i = 0, k = 1, f = 1, m = 0, n = 0;

int main() {
	cin >> n >> m;
	if (n == 1) {
		cout << "1";
		return 0;
	}
	k = f * n + m;
	for (i = 1; i <= n; i++) {
		if (k % (n - 1) != 0) {
			i = 1;
			f++;
			k = f * n + m;
			continue;
		}
		k = k / (n - 1) * n + m;
	}
	cout << k;
	return 0;
}