#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define rep(i, srt, end) for (long long i = (srt); i < (long long)(end); i++)
// Ref: https://qiita.com/ysuzuki19/items/d89057d65284ba1a16ac
#define dump(var)  do{std::cerr << #var << " : ";view(var);}while(0)
template<typename T> void view(T e){std::cerr << e << "\n";}
template<typename T> void view(const std::vector<T>& v){for(const auto& e : v){ std::cerr << e << " "; } std::cerr << "\n";}
template<typename T> void view(const std::vector<std::vector<T> >& vv){ std::cerr << "\n"; for(const auto& v : vv){ view(v); } }
template<typename T> void dump_cout(const T& v) { for(long long i = 0; i < v.size(); i++) std::cout << v[i] << (i == v.size()-1 ? "\n" : " "); }

// return maximum x such that x^2 <= n
// requirements: n <= 4e18 
long long isqrt(long long n) {
    long long res;
    long long l = 0, r = 2000000001;
    while(r - l > 1) {
        long long m = l + (r - l) / 2;
        if(m * m <= n) l = m;
        else r = m;
    }
    return l;
}

void solve() {
    ll n;
    cin >> n;
    cout << isqrt(n) << endl;
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    ll t;
    cin >> t;
    while(t--) solve();
    return 0;
}