Shared code

#include<bits/stdc++.h>
#define ll long long
#define fio ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)
using namespace std;

int main(){
	int n; cin>>n;
	if(n==1) cout<<1;
	else if(n==2 || n==3) cout<<"NO SOLUTION";
	else if(n==4) cout<<3<<" "<<1<<" "<<4<<" "<<2;
	else{
		for(int i=n;i>0;i-=2) cout<<i<<" ";
		for(int i=n-1;i>0;i-=2) cout<<i<<" ";
	}
	return 0;
}