#include <bits/stdc++.h>
using namespace std;
void fastInOut() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  cout.tie(NULL);
}
const int size = 300000 + 5;
void solve() {
  long long n;
  cin >> n;
  long long ans = 0;
  long long x = 1;
  long long ctr = 0;
  long long till_now = 0;
  while (till_now < n) {
    ans++;
    till_now += (x * (x + 1) / 2);
    ctr++;
    x += (1 << ctr);
  }
  if (till_now > n) ans--;
  cout << ans << endl;
}
int main(int argc, char const* argv[]) {
  fastInOut();
  int t = 1;
  cin >> t;
  while (t--) {
    solve();
  }
  return 0;
}
