文件目录

#include <iostream>
using namespace std;
int main()
{
    int n, a;
    cin >> n;
    int maxa = 0, mina = 9999999;
    while (n--)
    {
        cin >> a;
        if (a > maxa)
            maxa = a;
        if (a < mina)
            mina = a;
    }
    cout << maxa - mina;
    return 0;
}