#include <bits/stdc++.h>
using namespace std;

#define int long long

constexpr int maxn = 2e5 + 10;
constexpr int mod = 998244353;
constexpr int inf = 1e9;

inline void chmax(int &a, int b){a = max(a, b);}
inline void chmin(int &a, int b){a = min(a, b);}
inline void chadd(int &a, int b){a = (a + b) % mod;}

inline void solve()
{
  int n, k;
  cin >> n >> k;
  int all = n * (n + 1) / 2;
  if (all == k)
    cout << "0\n";
  else
  {
    int p = 0, now = 0;
    int lst = all - k;
    for (int i = 0; i < n; i ++)
    {
      while (now < lst && p < n)
        now += ++ p;
      if (now == lst)
      {
        cout << "1\n";
        return ;
      }
      now -= i + 1;
    }
    cout << "2\n";
  }
}

signed main()
{
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
  cout.tie(nullptr);

  solve();

  return 0;
}