Help me in solving CPPCC141 problem

bug reports
,
1

My issue

even by copying the code given in the solution page returns failed testcase.

My code

#include <bits/stdc++.h>
#define ll long long
using namespace std;

int main()
{
    ll t;
    cin >> t;
    while (t--)
    {
        ll n, k;
        cin >> n >> k;
        
        if(k==n)
        {
        	for(int i=1;i<=n;i++)
        	{
        		cout<<i<<" ";
        	}
        	cout<<endl;
        }
        
        else if (k==n-1)
        {
            cout << -1 << endl;
        }
        
        else
        {
            for(int i=1;i<=k;i++)
            {
            	cout<<i<<" ";
            }
            for(int i=k+2;i<=n;i++)
            {
            	cout<<i<<" ";
            }
            cout<<k+1<<endl;
        }
    }
    return 0;
}

Learning course: Medium C++ puzzles
Problem Link: FIXFIX Practice Problem in - CodeChef