import sys,math
input=lambda:sys.stdin.readline().rstrip()
def solve():
	H,W=map(int,input().split())
	for i in range(H):
		print(*[int((j+(W%3==2))%3!=0)+int((i+(H%3==2))%3!=0) for j in range(W)])
T=int(input())
for i in range(T):
	solve()