#include<algorithm>     //sort,二分探索,など
#include<bit>           //popcount
#include<bitset>        //固定長bit集合
#include<cmath>         //pow,logなど
#include<complex>       //複素数
#include<deque>         //両端アクセスのキュー
#include<fstream>       //ファイルストリーム（標準入力変更用）
#include<functional>    //sortのgreater
#include<iomanip>       //setprecision(浮動小数点の出力の誤差)
#include<iostream>      //入出力
#include<iterator>      //集合演算(積集合,和集合,差集合など)
#include<map>           //map(辞書)
#include<numeric>       //iota(整数列の生成),gcdとlcm(c++17)
#include<queue>         //キュー
#include<set>           //集合
#include<stack>         //スタック
#include<string>        //文字列
#include<unordered_map> //イテレータあるけど順序保持しないmap
#include<unordered_set> //イテレータあるけど順序保持しないset
#include<utility>       //pair
#include<vector>        //可変長配列

//#include<atcoder/all>
//using namespace atcoder;

//名前
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef map<string, int> msi;
typedef map<string, ll> msll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pllll;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<string> vs;
typedef vector<bool> vb;
typedef vector<vector<int>> vvi;
typedef vector<vector<ll>> vvll;
typedef vector<vector<string>> vvs;
typedef vector<vector<bool>> vvb;

//定数
const ll MOD = 1000000007;
const ll INF = 1000000000000000000;
const double EPS = 1e-10;
const int MAXR = 100000;             //10^5:配列の最大のrange

//マクロ
#define rep(i,n) for(int i=0;i<n;i++)
#define reps(i,s,e) for(int i=s;i<e;i++)
#define repse(i,s,e) for(int i=s;i<=e;i++)
#define rrep(i,n) for(int i=n-1;i>=0;i--)
#define all(x) (x).begin(),(x).end()
#define rall(x) (x).rbegin(),(x).rend()
#define in1(x1) cin >> x1
#define in2(x1, x2) cin >> x1 >> x2
#define in3(x1, x2, x3) cin >> x1 >> x2 >> x3
#define in4(x1, x2, x3, x4) cin >> x1 >> x2 >> x3 >> x4
#define in5(x1, x2, x3, x4, x5) cin >> x1 >> x2 >> x3 >> x4 >> x5
#define in6(x1, x2, x3, x4, x5, x6) cin >> x1 >> x2 >> x3 >> x4 >> x5 >> x6
#define inN(x, N) rep(i, N) in1(x[i])
#define outl(x) cout << x << endl
#define out2l(x, y) cout << x << " " << y << endl
#define out3l(x1, x2, x3) cout << x1 << " " << x2 << " " << x3 << endl
#define out4l(x1, x2, x3, x4) cout << x1 << " " << x2 << " " << x3 << " " << x4 << endl
#define outList(x) for(auto y : x) cout << y << " ";cout << endl

//よく使う関数
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return true; } return false; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return true; } return false; }
inline ll div_ceil(ll a, ll b) { return (a + (b - 1)) / b; }
inline string zeropad(int n, int m) { ostringstream sout; sout << setfill('0') << setw(m) << n; return sout.str(); }
inline int sgn(const double a) { return (a < -EPS ? -1 : (a > EPS ? +1 : 0)); } //a > 0ならば+1, a == 0ならば0, a < 0ならば-1　を返す。　基本的にEPS込みの評価はこれで行う。
template<class T> inline void unique(vector<T>& v) { sort(all(v)); v.erase(unique(all(v)), v.end()); }


template<ll mod> class modint {
public:
    ll val = 0;
    //コンストラクタ
    modint(ll x = 0) { while (x < 0)x += mod; val = x % mod; }
    //コピーコンストラクタ
    modint(const modint& r) { val = r.val; }
    //算術演算子
    modint operator -() { return modint(-val); } //単項
    modint operator +(const modint& r) { return modint(*this) += r; }
    modint operator -(const modint& r) { return modint(*this) -= r; }
    modint operator *(const modint& r) { return modint(*this) *= r; }
    modint operator /(const modint& r) { return modint(*this) /= r; }
    //代入演算子
    modint& operator +=(const modint& r) {
        val += r.val;
        if (val >= mod)val -= mod;
        return *this;
    }
    modint& operator -=(const modint& r) {
        if (val < r.val)val += mod;
        val -= r.val;
        return *this;
    }
    modint& operator *=(const modint& r) {
        val = val * r.val % mod;
        return *this;
    }
    modint& operator /=(const modint& r) {
        ll a = r.val, b = mod, u = 1, v = 0;
        while (b) {
            ll t = a / b;
            a -= t * b; swap(a, b);
            u -= t * v; swap(u, v);
        }
        val = val * u % mod;
        if (val < 0)val += mod;
        return *this;
    }
    //等価比較演算子
    bool operator ==(const modint& r) { return this->val == r.val; }
    bool operator <(const modint& r) { return this->val < r.val; }
    bool operator !=(const modint& r) { return this->val != r.val; }
};

using mint = modint<MOD>;

//入出力ストリーム
istream& operator >>(istream& is, mint& x)
{//xにconst付けない
    ll t; is >> t;
    x = t;
    return (is);
}
ostream& operator <<(ostream& os, const mint& x)
{
    return os << x.val;
}

//累乗
mint modpow(const mint& a, ll n)
{
    if (n == 0)return 1;
    mint t = modpow(a, n / 2);
    t = t * t;
    if (n & 1)t = t * a;
    return t;
}

//二項係数の計算
mint fac[MAXR + 1], finv[MAXR + 1], inv[MAXR + 1];

//テーブルの作成
void COMinit() {
    fac[0] = fac[1] = 1;
    finv[0] = finv[1] = 1;
    inv[1] = 1;
    repse(i, 2, MAXR)
    {
        fac[i] = fac[i - 1] * mint(i);
        inv[i] = -inv[MOD % i] * mint(MOD / i);
        finv[i] = finv[i - 1] * inv[i];
    }
}

//演算部分
mint COM(ll n, ll k) {
    if (n < k)return 0;
    if (n < 0 || k < 0)return 0;
    return fac[n] * finv[k] * finv[n - k];
}


int main()
{
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    //標準入力をファイルに変更
    //std::ifstream in("input.txt");
    //std::cin.rdbuf(in.rdbuf());

    int N;
    in1(N);

    int M = 9;

    vi c(M);
    inN(c, M);

    COMinit();

    mint P = 0;
    rep(i, N) P += modpow(10, i);

    mint T = 1;
    ll tmp = N;
    rep(i, N)
    {
        T *= COM(tmp, c[i]);
        tmp -= c[i];
    }

    mint ans = 0;

    rrep(i, M)
    {
        mint N2 = N;
        ans += ((T * c[i]) / mint(N)) * P * (i + 1);
    }

    outl(ans);

    return 0;
}