#include <bits/stdc++.h>
#include <algorithm>
#define lli long long int
#define li long int
#define mod 1000000007
#define ld long double
#define vi vector<int>
#define F first
#define S second
#define PB push_back
#define MP make_pair
#define REP(i, a, b) for (int i = a; i < b; i++)
using namespace std;

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    ld n, k;
    cin >> n >> k;

    ld a = floor(k / n);

    ld ans = k + a;

    ld t = floor(ans / n);

    ld u = t - a;

    while (u > 0)
    {
        ans = ans + u;      // 112 //113
        a = a + u;          // 15 //16
        t = floor(ans / k); // 16 //16
        u = t - a;          // 1 //0
    }
    cout << ans << endl;
    return 0;
}