#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--){
        int a, b; cin >> a >> b;
        int ok = 65000, ng = 0;
        while(ok - ng > 1){
            int mid = (ok + ng) / 2;
            if(sqrtl(a) + sqrt(b) < mid - EPS){
                ok = mid;
            }else{
                ng = mid;
            }
        }
        cout << ok << endl;
    }
}