#define _USE_MATH_DEFINES
#include  <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
#include <string>
#include<math.h>
#include<iomanip>
#include<stdio.h>
#include <stdlib.h>
#include<stdio.h>
#include <queue>
#include<map>
#include <fstream>
#include <sstream>
#include<set>
#include<stack>
#include<time.h>
#include <sys/types.h>
#include <tuple>
#include <numeric>
#include <iterator>

typedef long long int ll;
//#include<bits/stdc++.h>


using namespace std;

ll gcd(ll a, ll b) {
    if (a < b)swap(a, b);
    if (b == 0)return a;
    return gcd(b, a % b);
}
int lcm(int a, int b) {
    return a * b / gcd(a, b);
}


int main()
{

    int Q;
    Q = 1;
    cin >> Q;


    while (Q--) {
        ll n;
        cin >> n;
        vector<int>p(10);
        ll a = 0;
        for (int i = 1; i <= 9; i++) {
            cin >> p[i];
            if (p[i]) {
                for (int j = 0; j < p[i]; j++) {
                    a *= 10;
                    a += i;
                }
            }
        }
        a*= 1000000000;

        ll x = a % n;
        if (x == 0)x = n;
        if (a == 0)a = n;
        cout << a+n-x<<endl ;


    }
    return 0;
}