#include <bits/stdc++.h>
#include<atcoder/all>
#define rep(i,n) for(int i=0;i<n;i++)
using namespace std;
using namespace atcoder;
#define all(a) a.begin(),a.end()
typedef long long ll;
typedef pair<ll,int> P;
typedef vector<ll> vi;
constexpr ll inf=1ll<<61;
constexpr ll mod=998244353;
typedef modint998244353 mi;

int main(){
    int n;cin>>n;
    rep(i,n){
        long double a,b;cin>>a>>b;
        a=sqrt(a);b=sqrt(b);
        int ans=ceil(a+b+1e-9);
        cout<<ans<<endl;
    }
}