for _ in range(int(input())):
	n, m = map(int, input().split())
	if n <= m:
		for i in range(n):
			for j in range(m):
				print(1 + i + j + i*j + n*i, end = ' ')
			print()
	else:
		for i in range(n):
			for j in range(m):
				print(1 + i + j + i*j + m*j, end = ' ')
			print()