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 = ;
         cin>>num;
         sum -= num - ;
         while(num --)
         {
             cin>>a;
             sum += a;
         }
         cout<<sum<<endl;
     }
 }