N=int(input())
for _ in range(N):
  x,y=map(int, input().split())
  A=[i for i in range(x,0,-1)]
  s=(1+x)*x//2 
  if s>y:
    print(-1)
  else:
    k=y-s
    for j in range(x):
      A[j]+=k//x 
      if j+1<=k%x:
        A[j]+=1 
    print(*A)