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()