package main

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

func main() {
	sc := bufio.NewScanner(os.Stdin)
	sc.Split(bufio.ScanWords)
	sc.Scan()
	T, _ := strconv.Atoi(sc.Text())
	for i := 0; i < T; i++ {
		sc.Scan()
		N, _ := strconv.Atoi(sc.Text())
		fmt.Println(isqrt(N))
	}
}

func isqrt(n int) int { // n <= 1e18
	lo, hi := n, 1
	for lo > 0 {
		lo = lo >> 2
		hi = hi << 1
	}
	for {
		m := (hi + lo) / 2
		if m*m > n {
			hi = m - 1
		} else if n >= (m+1)*(m+1) {
			lo = m + 1
		} else {
			return m
		}
	}
}