#include <bits/stdc++.h>
#include <atcoder/all>
using namespace atcoder;
#define rep(i, n) for (int i = 0; i < (n); ++i)

using std::cin;
using std::cout;
using std::vector;

using mint = modint1000000007;

int main() {
	int n;
	cin >> n;
	
	vector<int> c(9);
	rep(i, 9) cin >> c[i];
	vector<mint> a(n + 1, 1);
	rep(i, n) a[i + 1] = a[i] * (i + 1);
	
	mint num = a[n - 1];
	rep(i, 9) num /= a[c[i]];
	
	mint cnt = 0;
	rep(i, 9) cnt += (i + 1) * num * c[i];
	
	mint ans = mint(10).pow(n) - 1;
	ans /= 9;
	ans *= cnt;
	cout << ans.val() << '\n';
	
	return 0;
}