//#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define REP(i, n) for(int i = 0; i < (int)(n); i++) #define FOR(i, j, k) for(int i = (int)(j); i < (int)(k); ++i) #define ROF(i, j, k) for(int i = (int)(j); i >= (int)(k); --i) #define FORLL(i, n, m) for(long long i = n; i < (long long)(m); i++) #define SORT(v, n) sort(v, v+n) #define REVERSE(v) reverse((v).begin(), (v).end()) using namespace std; using ll = long long; const ll MOD=1000000007LL; typedef pair P; ll ADD(ll x, ll y) { return (x+y) % MOD; } ll SUB(ll x, ll y) { return (x-y+MOD) % MOD; } ll MUL(ll x, ll y) { return x*y % MOD; } ll POW(ll x, ll e) { ll v=1; for(; e; x=MUL(x,x), e>>=1) if (e&1) v = MUL(v,x); return v; } ll DIV(ll x, ll y) { /*assert(y%MOD!=0);*/ return MUL(x, POW(y, MOD-2)); } template bool chmax(T &a,const T &b){if(a bool chmin(T &a,const T &b){if(a>b){a=b;return 1;}return 0;} //解説AC //https://yukicoder.me/submissions/318758 int main(void){ ios_base::sync_with_stdio(false); cin.tie(0); ll n; cin >> n; ll a = 4, b = n%(MOD-1); ll q,r; r = b % 9; q = (b-r)/9; REP(i, q) a = (a*-7)%MOD; REP(j, r) a = (a*10)%MOD; a=(a+MOD-1)%MOD; a = (a + (a%3)*MOD) / 3; cout << a << endl; return 0; }