1743 A A. Password.cpp

/*
problem link: https://codeforces.com/contest/1743/problem/A
my solution on codeforces : https://codeforces.com/contest/1743/submission/176842469
problem name: A. Password
status: accepted
author: lilian_steven   or LELLO 
*/
#include <bits/stdc++.h>
#include <iostream>
#include <vector>
#include <set>
#include <map>
#include <stack>
#include <cmath>
#include <unordered_map>
#include <algorithm>
#include <iomanip>
#include <bitset>
#include <utility>
#include <string>
#include <cctype>
#include <iomanip>
#include <numeric> // for NTH
#define bye return;
#define ll long long
#define li long int
#define lli long long int
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define sz(x) ((x).size())
#define ison(num, bit) (num & (1 << bit))
#define setoff(num, bit) (num ^= (1 << bit)) // iff (num &(1<<bit))
#define flipbit(num, bit) (num ^= (1 << bit))
#define setbit(num, bit) (num |= (1 << bit))
#define clearbit(num, bit) (num &= ~(1 << bit))
#define pop_count(num) __builtin_popcount(num)
#define Num_of_Digits(n) ((ll)log10(n) + 1)
#define ceill(n, m) (((n) / (m)) + ((n) % (m) ? 1 : 0))
#define lastOne(x) (__builtin_clzll(x))
#define Pi  3.14159265358979323846264
#define sin(a) sin((a)*PI/180)
#define cos(a) cos((a)*PI/180)
ll sgn(ll x){ if(x > 0) return 1; if(x < 0) return -1; return 0;}
ll gcd(ll a, ll b){if(b == 0) return a; return gcd(b, a%b);}
ll lcm(ll a, ll b){return a/gcd(a, b)*b;}
using namespace std;
void AC() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr); // or cin.tie(NULL)
    cout.tie(nullptr);  // or cout.tie(0)
    // #ifndef ONLINE_JUDGE
    //     freopen("input.txt", "r", stdin), freopen("output.txt", "w", stdout);
    // #endif
}
void file_set(string& file_name){
    freopen((file_name+".in").c_str(), "r", stdin);
    freopen((file_name+".out").c_str(), "w", stdout);
}
bool cmp(pair<int,int>&a, pair<int,int>&b){
    if(a.first == b.first){
        return a.second > b.second;
    }
    return a.first < b.first;
}

long long factorial(long long n) {
    long long factorial = 1;
    for (long long i = 2; i <= n; i++)
        factorial = factorial * i;
    return factorial;
}
long long nCr(long long n, long long r) {
    return factorial(n) / (factorial(r) * factorial(n - r));
}
void LELLO()
{
    int n  , x; cin >> n ;
    vector<int> vc ;
    for (int i = 0; i < n; i++)
    {
        cin >> x ;
        vc.push_back(x);
    }
    n = 10 - vc.size();
    int rem = nCr(n , 2) ;
    cout<< rem*6 <<endl; 
} 
 
 
void driver(ll t)
{
    while (t--) LELLO();
}
signed main()
{
    AC();
    ll test ; cin >> test ;
    driver(test);
}