package main

import . "fmt"

func main() {
	var t int
	Scan(&t)
	for ;t>0;t-- {
		var a,b,c,d,e int
		Scan(&a,&b,&c,&d,&e)
		x:=max(a,b,c,d,e)
		y:=min(a,b,c,d,e)
		Println(x-y)
	}
}