import strutils, sequtils

proc gen_one_two(x: int): seq[int] =
    result = @[]
    if x mod 3 == 2:
        result.add(2)
    for _ in 0..<x div 3:
        result.add(1)
        result.add(2)
    if x mod 3 == 1:
        result.add(1)

proc set_tile(map: var seq[seq[int]], x, y, h, w: int) =
    for i in 0..<h:
        for j in 0..<w:
            map[i + x][j + y] = h * w div 2

proc solve() =
    var h, w: int
    (h, w) = stdin.readLine.split.map parseInt

    let
        w_tile = gen_one_two(w)
        h_tile = gen_one_two(h)

    var map = newSeqWith(h, newSeq[int](w))

    var acc_h = 0
    for i in h_tile:
        var acc_w = 0
        for j in w_tile:
            set_tile(map, acc_h, acc_w, i, j)
            acc_w += j
        acc_h += i

    for i in map:
        echo i.map(proc(x: int): string = $x).join(" ")


let t = stdin.readLine.parseInt
for _ in 0..<t:
    solve()