#include <stdio.h>
#include <atcoder/all>
#include <bits/stdc++.h>
using namespace std;
using namespace atcoder;
using mint = modint998244353;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define Inf32 1000000001
#define Inf64 4000000000000000001

int main(){
	
	int _t;
	cin>>_t;
	rep(_,_t){
		long long M;
		cin>>M;
		long long ans = 0;
		rep(i,9){
			int d;
			cin>>d;
			rep(j,d){
				ans *= 10;
				ans += i+1;
			}
		}
		rep(i,9)ans *= 10;
		ans += (M-(ans%M))%M;
		cout<<ans<<endl;
	}
	return 0;
}