#include <bits/stdc++.h>
#include <atcoder/modint>
using namespace std;
using mint = atcoder::modint998244353;
int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    long N, K;
    cin >> N >> K;
    K = N * (N + 1) / 2 - K;
    if (K == 0) {
        cout << 0 << endl;
        return 0;
    }
    set<long> S;
    long sum = 0;
    for (int i = 1; i <= N; i++) {
        sum += i;
        S.insert(sum);
    }
    for (long s : S) {
        if (S.count(s + K)) {
            cout << 1 << endl;
            return 0;
        }
    }
    cout << 2 << endl;
}