n = int(input())
mn = n * n
rmn = -1
for r0 in range(1, 2):
    r = r0
    cnt = 0
    for c in range(1, n + 1):
        # r+3k < c
        cnt += (c - r + 2) // 3
        d = [1] * c
        for i in range(r, c, 3):
            d[i] = 2
        print(*d)
        r = (r + 2) % 3
    # print(r0, cnt)