#include <bits/stdc++.h>

using std::cin;
using std::cout;
using ll = long long;

ll mySqrt(ll x) {
	ll l = 0, r = x, res = -1;
	while (l <= r) {
		ll mid = l + (r - l) / 2;
		if (mid * mid <= x) {
			res = mid;
			l = mid + 1;
		}
		else {
			r = mid - 1;
		}
	}
	return res;
}

int main() {
	int t;
	cin >> t;
	
	while (t--) {
		ll n;
		cin >> n;
		ll ans = mySqrt(n);
		cout << ans << '\n';
	}
	
	return 0;
}