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

const int MOD=998244353,N=MOD>>8;
int I[N];

void init(int p){ I[1]=1; for(int i=1;i<N;++i) I[i]=MOD-1ll*(MOD/i)*I[MOD%i]%MOD; }
int inv(int x){
	if(x<N) return I[x];
	return MOD-1ll*(MOD/x)*inv[MOD%x]%MOD;
}

implementer.cpp: In function ‘int main()’:
implementer.cpp:22:14: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   22 |         scanf("%d", &n);
      |         ~~~~~^~~~~~~~~~
answer.code: In function ‘int inv(int)’:
answer.code:11:41: warning: pointer to a function used in arithmetic [-Wpointer-arith]
   11 |         return MOD-1ll*(MOD/x)*inv[MOD%x]%MOD;
      |                                         ^
answer.code:11:31: error: invalid operands of types ‘long long int’ and ‘int(int)’ to binary ‘operator*’
   11 |         return MOD-1ll*(MOD/x)*inv[MOD%x]%MOD;
      |                    ~~~~~~~~~~~^~~~~~~~~~~
      |                       |                 |
      |                       long long int     int(int)