#include<bits/stdc++.h>
#include<math.h>
#include<sstream>
using namespace std;
 
#define ll long long
#define ld long double
 
#define f(i,a,b) for(ll i=a;i<b;i++)
#define fb(i,a,b) for(ll i=a;i>=b;i--)
 
#define mp make_pair
#define pb push_back
 
#define ft first
#define sd second
#define endl "\n"
#define all(v) v.begin(),v.end()
 
#define fast ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
 
#define pll pair<ll,ll>
#define V vector<ll>
#define MP map<ll,ll>
#define S set<ll>
#define VV vector<V> 
 
#define autov V::iterator
#define autos S::iterator
#define automp MP::iterator
 
#define allv(it,A) for(autov it=A.begin();it!=A.end();it++)
#define alls(it,A) for(autos it=A.begin();it!=A.end();it++)
#define allmp(it,A) for(automp it=A.begin();it!=A.end();it++)
 
const ll N = 200005;
const ll M = 1000000007;
#define pi 3.14159265358979
 
ll pow1(ll a,ll b){
    int res=1;
    while(b>0){
        if(b&1){
        	res=(res*a)%M;
		}
        a=(a*a)%M;
        b>>=1; 
    }
    return res%M;
}

 
int main(){
   fast
   ll T;
   T=1;
   cin>>T;
   while(T--){
    ll n,l,r,s;
    cin>>n>>l>>r>>s;
    ll len=r-l+1;
    V v(n);
    f(i,0,n)v[i]=i+1;
    ll mn=0;
    ll mx=0;
    mn=(len*(len+1))/2;
    fb(i,n,n-len+1)mx+=v[i-1];
    if(s<mn || s>mx){
    	cout<<-1<<endl;
	}
	else if(len>1){
		ll i=1;
		set<ll>se;
		ll chk=0;
		fb(i,n,1){
			if(len>0 && s>0){
				ll mn1=(len*(len-1))/2;
				ll mx1=(len-1)*(2*i-len+2);
				mx1=mx1/2;
				if(s-i>=mn1 && s-i<=mx1){
					len--;
					s-=i;
					se.insert(i);
				}
			}
		}
		V ans(n);
		V vis(n+1,0);
		f(i,l-1,r){
			ans[i]=*se.begin();
			vis[ans[i]]=1;
			se.erase(*se.begin());
		}
		f(i,0,n){
			if(i<l-1 || i>=r){
				f(j,1,n+1){
					if(vis[j]==0){
						ans[i]=j;
						vis[j]=1;
						break;
					}
				}
			}
		}
		f(i,0,n)cout<<ans[i]<<" ";
		cout<<endl;
	}
	else{
		V ans(n,0);
		ans[l-1]=s;
		V vis(n+1,0);
		vis[s]=1;
		f(i,0,n){
			if(i!=l-1){
				f(j,1,n+1){
					if(vis[j]==0){
						ans[i]=j;
						vis[j]=1;
						break;
					}
				}
			}
		}
		f(i,0,n)cout<<ans[i]<<" ";
		cout<<endl;
	}
    }
}
   