#include <iostream>
#include <algorithm>
using namespace std;

int main() {
	
	int n;
	cin >> n;
	int a[n][5];
	int ans[n];
	for(int i = 0 ; i < n; i++) cin >> a[i][0] >> a[i][1] >> a[i][2] >> a[i][3] >> a[i][4];
	
	
	
	for(int i = 0; i < n; i++){
		int max = 0;
		int min = 99999;
		for(int m = 0; m < 5; m++){
			if(a[i][m] > max){
				max = a[i][m];
			}
			if(a[i][m] < min){
				min = a[i][m];
			}
		}
		cout << max - min << endl;
	}

	
	
	
}