#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#include<bits/extc++.h>
using namespace std;
typedef long long ll;
typedef long long ull;
constexpr int dx[]={1,0,0,-1},dy[]={0,1,-1,0};
constexpr int mod=998244353,Mod=1e9+7;
//*
#include<atcoder/all>
using namespace atcoder;
//*/
int main(){
	ll a,b;
	cin>>a>>b;
	if(a==1)
		cout<<0<<endl;
	else
		cout<<b/(1-a)<<endl;
}