POJ 2636

#include<iostream>
#include<stdio.h>
using namespace std;

int main()
{
    //freopen("acm.acm","r",stdin);
    int num;
    int sum;
    int time;
    int a;
    cin>>time;
    while(time --)
    {
        sum = 0;
        cin>>num;
        sum -= num - 1;
        while(num --)
        {
            cin>>a;
            sum += a;
        }
        cout<<sum<<endl;
    }
}