func main()
	var t: int :: cui@inputInt()
	for(1, t)
		var a: []int :: #[5]int
		for i(0, 4)
			do a[i] :: cui@inputInt()
		end for
		do a.sort()
		var ans: int :: a[4] - a[0]
		do cui@print("\{ans}\n")
	end for
	
end func