#include <bits/stdc++.h>
#define rep(i,n) for(int i = 0; i < (n); i++)
using namespace std;
typedef long long ll;

int main(){
    cin.tie(0);
    ios::sync_with_stdio(0);
    
    // x
    // Ax + B = x
    // (A - 1) x = -B
    // x = -B / (A-1)
    ll A,B; cin >> A >> B;
    if(A == 1LL) {
        assert(B == 0);
        cout << 1 << endl;
    } else {
        cout << -B / (A - 1) << endl;
    }
}