699 B | 699 chars
import sys
from math import sqrt, pi, sin, factorial, ceil, floor
BLANK = " "
inp = input
# inp = lambda : sys.stdin.readline()[:-1].strip()
mii = lambda x = BLANK : [*map(int,inp().split(x))]
mfi = lambda x = BLANK : [*map(float,inp().split(x))]
ii = lambda : int(inp())
fi = lambda : float(inp())
p = print
def solve():
n, k = mii()
if n == 1:
p(k)
return
loop = k // (n + n - 2)
left = k % (n + n - 2)
cnt = [loop] + [loop * 2] * (n - 2) + [loop]
k = [i for i in range(n)]
for i in range(n - 2, 0, -1):
k.append(i)
for i in k[:left]:
cnt[i] += 1
p(*cnt)
if __name__ == "__main__":
tc = ii()
for t in range(1, tc+1):
ret = solve()