#include <iostream>
using namespace std;
int main()
{
    long int n;
    while (cin >> n)
    {
        long  b1 = 0, b2 = 0, a[22], sum = 0;
        for (int i = 0; i < n; i++)
        {
            cin >> a[i];
            sum += a[i];
        }
        long int k = sum / 2;
        for(int i=0;i<n-1;i++)
            for(int j=i+1;j<n;j++)
                if (a[i] < a[j])
                {
                    long int t = a[i];
                    a[i] = a[j];
                    a[j] = t;
                }
        for (int j = 0; j < n; j++)
        {
            if (b1+a[j] <= k)
                b1 += a[j];
            else if (b1 < b2)
                b1 += a[j];
            else
                b2 += a[j];
        }
        long int x = b2 - b1;
        if (x < 0)
            x = -x;
        cout << x << endl;
    }
    return 0;
}