[Silver 1] 11057번 오르막 수

import java.io.*;

public class Main {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        int n = Integer.parseInt(br.readLine());
        int[][] dp = new int[n+1][10];
        int ans = 0;
        
        for(int i=0; i<=9; i++) { dp[1][i] = 1; }
        
        for(int i=2; i<=n; i++) {
            for(int j=0; j<=9; j++) {
                for(int k=0; k<=j; k++) {
                    dp[i][j] += dp[i-1][k];
                    dp[i][j] %= 10007;
                }
            }
        }
        
        for(int i=0; i<=9; i++) {
            ans += dp[n][i];
            ans %= 10007;
        }
        
        System.out.println(ans);
    }
}