#include <bits/stdc++.h>

using namespace std;

#define ll long long
#define rep(i, a, n) for (int i = (int)(a); i < (int)(n); i++)
#define rrep(i, n, a) for (int i = (int)(n); i >= (int)(a); i--)

void solve(){
    int n; cin >> n;
    rep(i,0,n){
        ll a,b; cin >> a >> b;
        double x = sqrt(a)+sqrt(b);
        cout << (int)x+1 << '\n';
    }
}

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    solve();

    return 0;
}