#include <bits/stdc++.h>   using namespace std;   int main() {     ios_base::sync_with_stdio(false);     cin.tie(NULL);     cout.tie(0);     long long n, i, j, k, l, m, arr[100010], arr1[100010], x, y;     double a, b, c, d, p, t;     cin >> n;     for (i = 0; i < n; i++) cin >> arr[i];     sort(arr, arr + n);     reverse(arr, arr + n);     arr1[0] = arr[0];     for (i = 1; i < n; i++) arr1[i] = arr1[i - 1] + arr[i];     m = 9999999999;     for (i = 0; i < n - 1; i++)       m = min(abs(abs(arr1[n - 1] - arr1[i]) - arr1[i]) + 1, m);     cout << m;   }   