#include <stdio.h>
#include <atcoder/all>
#include <bits/stdc++.h>
using namespace std;
using namespace atcoder;
using mint = modint998244353;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define Inf 1000000003

int main() {
	
	int n;
	cin>>n;
	
	vector<mint> dp(n,0);
	dp[n-1] = 1;
	
	rep(i,n){
		vector<mint> ndp(n,0);
		rep(j,n){
			if(dp[j]==0)continue;
			for(int k=1;k<=1000;k++){
				int D = k - to_string(k).size();
				if(j-D<0)break;
				ndp[j-D] += dp[j];
			}
		}
		swap(dp,ndp);
	}
	cout<<dp[0].val()<<endl;
	
}