#include <bits/stdc++.h>
using namespace std;

const int M = int(1e9 + 7);

signed main() {
  ios::sync_with_stdio(false);
  
  int N;
  cin >> N;
  
  vector<vector<int>> dp(2, vector<int>(10));
  dp[0][0] = 1;
  
  for (int i = 0; i < N; ++i) {
    vector<vector<int>> ndp(2, vector<int>(10));
    for (int j = 0; j < 2; ++j) {
      for (int k = 0; k < 10; ++k) {
        for (int l = k; l < 10; ++l) {
          (ndp[j | l < 10][l] += dp[j][k]) %= M;
        }
      }
    }
    swap(dp, ndp);
  }
  
  int ans = 0;
  for (int i = 0; i < 2; ++i)
    for (int j = 0; j < 10; ++j)
      (ans += dp[i][j]) %= M;
      
  cout << ans << endl;
}