n, k = map(int, input().split())

if k == 0:
    print(-1)

r = n * n - k

arr = [list(range(n * i + 1, n * i + n + 1)) for i in range(n)]

for i in range(n):
    # swap n - j - 1 と n - j - 2
    for j in range(n - 1):
        if r == 0: break
        arr[i][n - j - 1], arr[i][n - j - 2] = arr[i][n - j - 2], arr[i][n - j - 1]
        r -= 1

for i in range(n - 1):
    if r == 0: break
    arr[n - i - 1][0], arr[n - i - 2][0] = arr[n - i - 2][0], arr[n - i - 1][0]
    r -= 1

for line in arr:
    print(*line)