#include <iostream>
#include <string>
#include <algorithm>
#include <vector>
#include <iomanip>
#include <cmath>
#include <stdio.h>
#include <queue>
#include <deque>
#include <cstdio>
#include <set>
#include <map>
#include <bitset>
#include <stack>
#include <cctype>
using namespace std;
long long dp[1000010][11] = {};
int main() {
	int n;
	cin >> n;
	dp[0][0] = 1;
	for (int i = 1; i <= n; i++) {
		long long sum = 0;
		for (int j = 0; j < 10; j++) {
			sum += dp[i - 1][j];
			sum %= 1000000007;
			dp[i][j] += sum;
			dp[i][j] %= 1000000007;
		}
	}
	long long ans = 0;
	for (int i = 0; i < 10; i++) {
		ans += dp[n][i];
		ans %= 1000000007;
	}
	cout << ans << endl;
}