#include <iostream>
#include <vector>
#include <string>
#include <atcoder/modint>
using namespace std;
using ll = long long;
using ull = unsigned long long;
#define rep(i,n) for(int i=0; i<(n); i++)


using mll = atcoder::static_modint<1000000007>;


int main(){
  int N; cin >> N;
  int C[9]; rep(i,9) cin >> C[i];
  vector<mll> F(N+1, 1);
  for(int i=1; i<=N; i++) F[i] = F[i-1] * i;
  mll cnt = F[N];
  rep(i,9) cnt /= F[C[i]];
  mll sum = 0;
  rep(i,9) sum += C[i] * (i+1);
  mll pos = 0;
  rep(i,N) pos = pos * 10 + 1;
  mll ans = cnt * sum / N * pos;
  cout << ans.val() << "\n";
  return 0;
}

struct ios_do_not_sync{
  ios_do_not_sync(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
  }
} ios_do_not_sync_instance;