ll@n,a[n+1];
VI v[n+1];
rep(i,1,n+1){
	ll j=i;
	rrep(k,1,547){
		if(j%(k*k)==0){
			j/=k*k;
		}
	}
	a[i]=j;
	v[j].push_back(i);
}
rep(i,1,n+1){
	wtSp(v[a[i]].back());
	v[a[i]].pop_back();
}