package main

import (
	"bufio"
	"fmt"
	"os"
)

func main() {
	in := bufio.NewReader(os.Stdin)
	out := bufio.NewWriter(os.Stdout)
	defer out.Flush()

	var t int
	if _, err := fmt.Fscan(in, &t); err != nil {
		return
	}

	for i := 0; i < t; i++ {
		var x uint64
		fmt.Fscan(in, &x)
		var cnt int
		k := 1
		for {
			n := (uint64(1) << k) - 1
			cells := n * (n + 1) / 2
			if x >= cells {
				x -= cells
				cnt++
				k++
			} else {
				break
			}
		}
		fmt.Fprintln(out, cnt)
	}
}