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 n int64
		fmt.Fscan(in, &n)

		var ans int64
		rem := n % 4
		if rem == 0 || rem == 2 {
			ans = 4*n + 1
		} else if rem == 1 {
			ans = 2*n + 1
		} else {
			ans = n + 1
		}
		fmt.Fprintln(out, ans)
	}
}