#include <bits/stdc++.h> using namespace std; int main() { int N, i; cin >> N >> i; int x = 1; while (true) { bool f = true; int fish = x; for (int k = N; k >= 1; k--) { if (fish % N != 0) { f = false; break; } int y = fish / N; fish = (N - 1) * (y + i); } if (f) { cout << x << endl; break; } x++; } return 0; }