n=int(input())
a=[[0]*n for i in range (n)]
z=n
ost=n%3
s=1
b=-1
d=0

while n>0:
    for i in range(n):
        if n%3==ost:
            b+=1
            a[d][b]=s
        elif n%3==(ost-1)%3:
            b-=1
            d+=1
            a[d][b]=s
        elif n%3==(ost-2)%3:
            d-=1
            a[d][b]=s
        s+=1
    n-=1

for i in range(z):
    for j in range(z):
        if a[i][j]==0:
            a[i][j]=1
for i in range (z):
    for j in range(z):
        print('{:4d}'.format(a[i][j]), end='')
    print()