func_code_string: #include <bits/stdc++.h>   using namespace std;   template <typename T>   inline void read(T& x) {     x = 0;     char s = (char)getchar();     bool f = false;     while (!(s >=  0  && s <=  9 )) {       if (s ==  - ) f = true;       s = (char)getchar();     }     while (s >=  0  && s <=  9 ) {       x = (x << 1) + (x << 3) + s -  0 ;       s = (char)getchar();     }     if (f) x = (~x) + 1;   }   const long long N = 2e6 + 5, mod = 998244353, MAX = 2e6;   long long power[N], fac[N], inv[N];   inline long long quickpow(long long a, long long b, long long p = mod) {     long long res = 1;     while (b) {       if (b & 1) res = res * a % p;       a = a * a % p;       b >>= 1;     }     return res;   }   inline long long C(long long n, long long m) {     if (n < m) return 0;     return fac[n] * inv[m] % mod * inv[n - m] % mod;   }   long long n;   long long ans[N];   void init() {     long long limit = 2e5;     long long x = 810;     ans[1] = 10;     ans[2] = 180;     for (register long long i = 3; i <= limit; ++i) {       ans[i] = ans[i - 1] * 10 + x;       x *= 10;       ans[i] %= mod, x %= mod;     }   }   signed main() {     init();     long long n;     cin >> n;     for (register long long i = n; i >= 1; --i) cout << ans[i] <<    ;     cout <<   n ;     return 0;   }   