#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include //eolibraries #define lnf 3999999999999999999 #define inf 999999999 #define fi first #define se second #define pb push_back #define ll long long #define ld long double #define all(c) (c).begin(),(c).end() #define sz(c) (int)(c).size() #define make_unique(a) sort(all(a)),a.erase(unique(all(a)),a.end()) #define pii pair #define rep(i,n) for(int i = 0 ; i < n ; i++) #define drep(i,n) for(int i = n-1 ; i >= 0 ; i--) #define crep(i,x,n) for(int i = x ; i < n ; i++) #define vi vector #define vec(...) vector<__VA_ARGS__> #define _376o25z ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0) //eodefine using namespace std; const int mxn=400000; const int mod=1000000007; //snuke's modular int struct modularint{ ll x; modularint(ll x=0):x(x%mod){} modularint& operator+=(const modularint a){ if ((x += a.x) >= mod) x -= mod; return *this; } modularint& operator-=(const modularint a){ if ((x += mod-a.x) >= mod) x -= mod; return *this; } modularint& operator*=(const modularint a){ (x *= a.x) %= mod; return *this; } modularint operator+(const modularint a)const{ modularint res(*this); return res+=a; } modularint operator-(const modularint a)const{ modularint res(*this); return res-=a; } modularint operator*(const modularint a)const{ modularint res(*this); return res*=a; } modularint pow(int n)const{ modularint res=1,x(*this); while(n){ if(n&1)res*=x; x*=x; n>>=1; } return res; } modularint inv()const{ return pow(mod-2); } }; using mint=modularint; mint fact[mxn+10]; void prefact(){ fact[0]=fact[1]=1; crep(i,2,mxn){ mint x=i; fact[i]=fact[i-1]*x; } } mint cnk(ll k , ll n){ if(k>n) return 0; mint e=fact[k]*fact[n-k]; return fact[n] * e.inv(); } int main(){ _376o25z; prefact(); int n; cin>>n; mint e=fact[n]; vec(ll) a(12); rep(i,9){ cin>>a[i]; } vec(mint) pot(n+10); pot[0]=1; crep(i,1,n){ mint x=10; pot[i]=pot[i-1]*x; } mint ans=0; rep(i,9){ if(a[i]==0) continue; mint e=fact[n-1]; rep(j,9){ if(i==j){ if(a[j]-1>0) e=e*fact[a[j]-1].inv(); }else{ if(a[j]>0) e=e*fact[a[j]].inv(); } } mint ef=i+1; mint now=0; rep(x,n){ now=now+pot[x]*e*ef; } ans+=now; // cout<