#!/bin/python3

import sys
import math


q = int(input().strip())
for a0 in range(q):
    len,c = input().strip().split(' ')
    len,c = [int(len),int(c)]
    #print(math.factorial(len-1))
    # your code goes here
    if math.factorial(len-1) >= c:
        for i in range(len+1,0,-1):
            print(i, end=" ")
        print()

    else:
    	print('-1')