#include <bits/stdc++.h>

using i64 = long long;

int main() {
    int N;
    i64 K;
    std::cin >> N >> K;

    K = (i64)(N + 1) * N / 2 - K;
    if (K == 0) {
        std::cout << 0 << std::endl;
        return 0;
    }

    K *= 2;
    int answer = 2;
    for (i64 a = 1; a <= N; ++a) {
        i64 ok = a, ng = N + 1;
        while (ng - ok > 1) {
            const auto mid = (ok + ng) / 2;
            if ((a + mid) * (mid - a + 1) <= K) {
                ok = mid;
            } else {
                ng = mid;
            }
        }

        if ((a + ok) * (ok - a + 1) == K) {
            answer = 1;
        }
    }

    std::cout << answer << std::endl;
}