import sys

readline = sys.stdin.readline
readall = sys.stdin.read
ns = lambda: readline().rstrip()
ni = lambda: int(readline().rstrip())
nm = lambda: map(int, readline().split())
nl = lambda: list(map(int, readline().split()))
prn = lambda x: print(*x, sep='\n')

def solve():
    n = ni()
    a = [i//2 + 2 + n//2 if i%2 else i//2 + 1 for i in range(n)]
    for i in range(n):
        print(*(a[i:] + a[:i]))
    return

solve()