from pickle import FALSE, TRUE
from re import M
from tkinter.tix import Tree

BIGMAP = []
for _ in range(50):
    BIGMAP.append([0,1,1]*100)
    BIGMAP.append([1,2,2]*100)
    BIGMAP.append([1,2,2]*100)

T = int(input())
for _ in range(T):
    H,W = map(int, input().split())
    hoff = 0
    woff = 0
    if H%3==2:
        hoff+=1
    if W%3==2:
        woff+=1
    MAP = []
    for i in range(hoff,H+hoff):
        MAP.append(BIGMAP[i][woff:W+woff])
    for m in MAP:
        print(*m)