#include <bits/stdc++.h>
using namespace std;
#include <atcoder/all>
using namespace atcoder;
#define rep(i, n) for(int i=0;i<(n);++i)
#define rep1(i, n) for(int i=1;i<=(n);i++)
#define ll long long
using mint = modint998244353;
using P = pair<ll,ll>;
using lb = long double;
using T = tuple<ll, ll, ll>;
#ifdef LOCAL
#  include <debug_print.hpp>
#  define dbg(...) debug_print::multi_print(#__VA_ARGS__, __VA_ARGS__)
#else
#  define dbg(...) (static_cast<void>(0))
#endif

void solve(){
    ll m;
    cin >> m;
    ll now = 0;
    rep(i,9){
        int d;
        cin >> d;
        rep(j,d){
            now *= 10;
            now += i+1;
        }
    }    
    dbg(now);
    now *= 10000000000;
    ll v = now%m;
    now += (m-v);
    assert(now<=1e18);
    assert(now%m==0);
    cout << now << endl;
}

int main()
{
    int t;
    cin >> t;
    rep(i,t){
        solve();
    }
    return 0;
}