#include <iostream>
using namespace std;
int main(void)
{
    int i,j,k,n,p,amount = 0;
    cin >> n;
    for (i = 0; i < n; i++)
    {
        amount = 0;
        cin >> k;
        for (j = 0; j < k; j++)
        {
            cin >> p;
            amount = amount + p;
            }
            cout << amount - k + 1 <<endl;
            }
            system("pause");
            return 0;
            }