import sys

a = int(input())
stanum = 1
addrow = 0
for i in range(a):
    num = a-i
    stanum = stanum + i
    sta = stanum
    staadd = i+2
    res = []
    for i in range(num):
        res.append(sta)
        sta = sta + staadd
        staadd+=1
    print(*res)