#include <bits/stdc++.h>
#define rep(i, n) for(long long i = 0; i < (long long)(n); i++)
using namespace std;
using ll = long long;
const ll INF = 1e18;
const ll mod = 1e9 + 7;

long long ModPow(long long N, long long P, long long Mod){
    if(P == 0) return 1;
    if(P%2 == 0) {
        ll t = ModPow(N, P/2, Mod);
        return t % Mod * t % Mod;
    }
    return N * ModPow(N, P-1, Mod) % Mod;
}

long long ModInv(long long N, long long Mod) {
    return ModPow(N, Mod - 2, Mod);
}

int main(){
    ll N;
    cin >> N;
    ll ans = ModPow(10, N, mod) + ((ModPow(10, N, mod) - 1) * ModInv(3, mod)) % mod;
    cout << ans%mod << endl;
    return 0;
}