#pragma GCC optimize(3,"Ofast","inline")
#include <bits/stdc++.h>

#define ios_close std::ios::sync_with_stdio(false), std::cin.tie(nullptr), std::cout.tie(nullptr)

using ll = long long;
using ull = unsigned long long;
using i128 = __int128;
#define Pi  acos(-1.0);
#define PINF 0x3f3f3f3f
#define NINF -0x3f3f3f3f

void solve(){
    std::vector<ll> pre(1000010);
    int n;
    ll k;
    scanf("%d %lld", &n, &k);
    for(int i = 1; i <= n; i ++ ){
        pre[i] = pre[i - 1] + i;
    }
    if(pre[n] == k){
        printf("0");
        return ;
    }
    std::unordered_set<ll> S;
    S.insert(0);
    ll t = k - pre[n];
    for(int i = 1; i <= n; i ++ ){
        if(S.count(t + pre[i])){
            printf("1");
            return ;
        }
        S.insert(pre[i]);
    }
    printf("2");
}

int main(){
#if 0
    ios_close;
#endif

#if 0
    freopen(".in", "r", stdin);
    freopen(".out", "w", stdout);
#endif
    int T = 1;
#if 0
    std::cin >> T;
#endif
    while(T -- ){
        solve();
    }
    return 0;
}