#include <bits/stdc++.h>
using namespace std;

#define ll long long

void solve() {
    ll a, b;
    cin >> a >> b;

    cout << floor(sqrt(a) + sqrt(b) + 1) << endl;
       
}
 
int main(){
    ios::sync_with_stdio(0);
    cin.tie(NULL);
    cout.tie(NULL);
    int t;
    cin >> t;
    while(t--){
        solve();
    }
    //solve();
    return 0;
}