#include <bits/stdc++.h>

using namespace std;

long long int fact(int num){
    long long int rval = 1;
    for(int i = 1; i <= num; ++i){
        rval *= i;
    }
    //cout << "fact: " << rval;
    return rval;
}

int main(){
    int q;
    cin >> q;
    for(int a0 = 0; a0 < q; a0++){
        int len;
        int c;
        cin >> len >> c;
        // your code goes here
        if(c == 0 && len != 1){
            cout << -1 << endl;
        }else if(c == 0 && len == 1){
            cout << 1 << endl;
        }else if(fact(len-1) % c != 0){
            //cout << "test: " << (fact(len-1) % c) << endl;
            cout << -1 << endl;
        }else if(len % 2 == 0){
            for(int i = len; i > 0; --i){
                cout << i << " ";
            }
            cout << "\n";
        }else{
            int i = len;
            stack<int> s;
            while(i > 0){
                if(i == 1){
                    cout << 1 << " ";
                }else{
                    cout << i-1 << " ";
                    s.push(i);
                }
                i-=2;
            }
            while(!s.empty()){
                cout << s.top() << " ";
                s.pop();
            }
            cout << "\n";
        }
    }
    return 0;
}