T=int(input())
answers=[]
for _ in range(T):
    N,X=map(int,input().split())
    ans=[]
    for i in range(N):
        l=N-i
        s=(X+l*(l-1)//2)
        if(s%l==0):
            ans.append(s//l)
            X-=s//l
        else:
            ans.append(s//l+1)
            X-=s//l+1
    if(min(ans)<1):
        answers.append([-1])
    else:
        answers.append(ans)
for ans in answers:
    print(*ans)