#include <climits>
#include <iostream>
#include <cassert>
#include <cmath>
using namespace std;
using ll = long long;

void solve() {
    ll a, b;
    cin >> a >> b;
    ll min_x = max<ll>(1, sqrt(a) + sqrt(b) - 10);
    for (int x = min_x; x < min_x + 20; ++x) {
        ll x4 = x * x * x * x;
        ll sb = 2 * x * x * (a + b);
        if (x4 - sb > 0) {
            cout << x << endl;
            return;
        }
    }
}

int main() {
    int n;
    cin >> n;
    for (int i = 0; i < n; ++i) {
        solve();
    }
    return 0;
}