#include <bits/stdc++.h>

using namespace std;

const long double EPS = 1e-14;

int main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    int n; cin >> n;

    while(n--){
        long double a, b; cin >> a >> b;
        cout << (int) ceil(sqrtl(a) + sqrt(b) + EPS) << endl;
    }
}