#include #include #include using namespace atcoder; using mint = modint998244353; using namespace std; #define rep(i,n) for(int i=0;i<(n);i++) #define Inf 1000000001 int main(){ int N; cin>>N; vector E(N,0); mint x = 0; mint y = 0; rep(i,N){ x = 1+N; x /= i+2; x *= i+1; E[i] = x; } // cout<