#include <bits/stdc++.h>
using namespace std;

/// complete sliding window and two pointer

///A. Codeforces Checking

int main()
{
    long long t,n;
    cin >> t;
    while(t--){
       cin >> n;
       int counter = 1;
       for(int i=1; i<n-1; i++){
        for(int j=1; j<n-1; j++){
            if(i<j && i+j==n){
                counter++;
            }
        }
       }
       cout << counter  <<endl;

    }



    return 0;
}