#include <bits/stdc++.h>
using namespace std;
//#include<atcoder/all>
//using namespace atcoder;
using ll = long long int;
using ull = unsigned long long int;
using ld = long double;
constexpr ll MAX = 2000000000000000000;
constexpr ld PI = 3.14159265358979;
constexpr ll MOD = 0;//2024948111;
ld dotorad(ld K){ return PI * K / 180.0; }
ld radtodo(ld K){ return K * 180.0 / PI; }
mt19937 mt;
void randinit(){ srand((unsigned)time(NULL));mt = mt19937(rand()); }
int main(){
    ll R,B;
    cin >> R >> B;
    vector<ll> muri = {2,3,6,7,8,11,12,15,18,19,22,23,24,27,28,31,32,33,43,44,47,48,60,67,72,76,92,96,108,112,128,MAX};
    while(1){
        ll p = *lower_bound(muri.begin(),muri.end(),R);
        if(p != R) break;
        R--;
    }
    while(1){
        ll p = *lower_bound(muri.begin(),muri.end(),B);
        if(p != B) break;
        B--;
    }
    if(R + B < 506){
        for(ll n = 12;n >= 1;n--){
            for(ll bit = 0;bit < (1LL << n);bit++){
                ll a = 0,b = 0;
                for(ll i = 0;i < n;i++){
                    if(bit & (1LL << i)){
                        a += (i + 1) * (i + 1);
                    }
                    else{
                        b += (i + 1) * (i + 1);
                    }
                }
                if(a <= R && b <= B){
                    cout << n << endl;
                    return 0;
                }
            }
        }
    }
    ll a = 0;
    for(ll i = 1;i <= 1817121;i++){
        if(a + i * i > R + B){
            cout << i - 1 << endl;
            return 0;
        }
        a += i * i;
    }
}