#include using namespace std; constexpr int mod = 1000000007; long long fac[200005], finv[200005], inv[200005]; void COMinit() { fac[0] = fac[1] = finv[0] = finv[1] = inv[1] = 1; for (int i = 2; i < 200005; i++) { fac[i] = fac[i - 1] * i % mod; inv[i] = mod - inv[mod % i] * (mod / i) % mod; finv[i] = finv[i - 1] * inv[i] % mod; } } long long COM(int n, int k){ if (n < k) return 0; if (n < 0 || k < 0) return 0; return fac[n] * (finv[k] * finv[n - k] % mod) % mod; } int main() { COMinit(); int N; cin >> N; vectortmp(9); long long ans = 0; for(int i = 0; i < 9; i++) { cin >> tmp[i]; } for(int i = 0; i < 9; i++) { long long tmp2 = COM(N-1,tmp[i]-1); long long sum = N-tmp[i]; for(int j = 0; j < 9; j++) { if(i != j) { tmp2 *= COM(sum,tmp[j]); tmp2 %= mod; sum -= tmp[j]; } } sum = 1; for(int j = 0; j < N; j++) { ans += sum*tmp2%mod*(i+1)%mod; ans %= mod; sum *= 10; sum %= mod; } } cout << ans << endl; }