#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
#include <limits.h>
#define subtract(a, b) a-b
using namespace std;


int main() {
    int n;
    cin >> n;
    vector<int> v(n);
    for(int i = 0; i < n; i++){
        cin >> v[i];
    }
    
    int maxi = INT_MIN;
    int mini = INT_MAX;
    for(int i = 0; i < n; i++){
        if(v[i] > maxi) maxi = v[i];
        if(v[i] < mini) mini = v[i];
    }
    
    cout << "Result = " << subtract(maxi, mini) << endl;
    return 0;
}