#include<bits/stdc++.h>
#include<atcoder/all>
#define chmin(x,y) (x) = min((x),(y))
#define chmax(x,y) (x) = max((x),(y))
#define ld long double
using namespace std;
using namespace atcoder;
using ll = long long;
const ll mod = 998244353;
using mint = modint998244353;
using Graph = vector<vector<int>>;
const vector<int> dx = {1,0,-1,0}, dy = {0,1,0,-1};

int main(){
  // input
  int t; cin >> t;
  const ll N = 1e9;
  while(t--){
  	ll M; cin >> M;
  	ll ans = 0;
  	for(int i = 1; i <= 9; i++){
  		int d; cin >> d;
  		for(int j = 0; j < d; j++){
  			ans *= 10;
  			ans += i;
  		}
  	}
  	ans *= N;
  	ans += M - (ans % M);
  	// cout << (ans % M == 0 && ans <= 1e18 ? "OK" : "NG") << endl;
  	cout << ans << endl;
  }
}